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RE: [Xen-devel] [PATCH] Console Daemon

On Wed, 2005-08-03 at 10:32 +0100, Ian Pratt wrote:
> > I was thinking of a console rewrite which puts the list of 
> > shared pages in /domain/<uuid>/console/.  I'll be looking at 
> > this once the rest of the store stuff is merged (soon, at the 
> > rate Christian is working).
> Synchornize with Robert Read, who's working up a patch to move the
> console onto it's own ring buffer. This will be set up by the domain
> builder so we can get immediate start of day console access, rather than
> being boot strapped via xenbus.

Hi Robert!

        I have some old code I wrote for the IBM Research Hypervisor which
implements a console.  I stole that ring buffer code for the xenstore,
in fact.

        I don't think externally-supplied pages are necessary.  I was thinking
of writing the page (or pages) into the store immediately (since we
don't need locks, or to wait for a reply).  I think we want more than
one page because my boot messages almost hit 8k to the first login
prompt, and the idea of requiring a console daemon repulses me.

A bad analogy is like a leaky screwdriver -- Richard Braakman

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