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Re: [Xen-devel] Backend in user space, how is its kernel dev unregistere

To: Markus Armbruster <armbru@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] Backend in user space, how is its kernel dev unregistered?
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Wed, 04 Mar 2009 19:17:16 +0000
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On 04/03/2009 19:02, "Markus Armbruster" <armbru@xxxxxxxxxx> wrote:

> But what if the device driver is in user space?  vfb and vkbd are.  I
> can't see how their kernel devices can ever get unregistered.

Presumably these should watch xenstore themselves and tear down state when
they see state changes from the frontend, or the corresponding xenstore
directory disappear completely. Just like in the kernel's xenbus_probe.c.

 -- Keir



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