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

[Markus Armbruster <armbru@xxxxxxxxxx>]

Keir Fraser <keir.fraser@xxxxxxxxxxxxx> writes:

> 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

Stupid question: how can a user space driver get *kernel* devices unregistered?

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