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

[Gerd Hoffmann <kraxel@xxxxxxxxxx>]

Markus Armbruster wrote:
> 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?

/me is confused.
Which kernel device you are talking about?
Frontend?  That one lives in guest kernel space and should work like all
other frontends.
Backend?  There is no kernel device in the first place.

cheers,
  Gerd

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel