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Re: [Xen-devel] back/frontend drivers HelloWorld

To: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Subject: Re: [Xen-devel] back/frontend drivers HelloWorld
From: NAHieu <nahieu@xxxxxxxxx>
Date: Fri, 23 Sep 2005 20:37:38 +0900
Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Anton Korenyushkin <tiger@xxxxxxxxxxxxxx>
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Reply-to: NAHieu <nahieu@xxxxxxxxx>
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On 9/23/05, Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> wrote:
>
> On 23 Sep 2005, at 10:53, NAHieu wrote:
>
> >> You bootstrap yourself via xenbus. You have a pre-agreed location in
> >> the xenstore hieararchy where the frontend driver writes key-value
> >> pairs containing the grant reference for the page containing the
> >> message rings, and an event channel for async notifications.
> >>
> >
> > I imagine that we can get rid of event channel, and use xenstore to
> > notify. That is certainly OK, but I doubt about its efficientcy. What
> > do you think?
>
> Very mad.

Yes, it is. But looks like xenstore is the only way to "notify"
between userspace applications (like one runs in domU and another runs
in dom0). Or there is another good solution ?

Thanks,
NAH

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