Re: Proposal for init/kexec/hotplug format for Xen

[Anthony Liguori <aliguori@us.ibm.com>]

Keir Fraser wrote:

> I think we will provide a custom protocol for allowing guest kernels 
> to access the persistent store -- it needn't be very complicated, and 
> will allow things like basic device bootstrap to be done via the store 
> without any chicken-and-egg or deadlock problems. Also there may be 
> security implications in allowing arbitrary guests to make TCP 
> connections to domain0 (at the very least, there may be possible DoS 
> attacks) -- of course we allow this by default right now, but we don't 
> want to make it a requirement of using Xen.

One of the things I'd like to see in the new management tools is a 
higher level interdomain communication library.  A very useful 
abstraction would be a interdomain stream built on top of shared memory 
and event channels.

Interdomain streams would be perfect for something like this.

Regards,
Anthony Liguori


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