From mboxrd@z Thu Jan  1 00:00:00 1970
From: NAHieu <nahieu@gmail.com>
Subject: Do I need xenbus_driver?
Date: Thu, 29 Sep 2005 13:41:20 +0900
Message-ID: <5d7aca950509282141370c31bd@mail.gmail.com>
Reply-To: NAHieu <nahieu@gmail.com>
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Hi,

I am writing a small kernel module, which splits into 2 part: one runs
in dom0, and the other runs in domU.  The main job is to exchange some
data between them, and there is no hardware related.

It seems simple enough: dom0 module watches for domU via xenstore,
then they exchange grant-table-ref with each other and then go ahead
doing their work.

The problem is: I saw all the xen drivers, and they all register to
xenbus (with xenbus_driver structure). Look again at my code, I dont
see why I need to exploit the xebus_driver interface. So my question
is: Why I need xenbus_driver in my case, and what is the advantages?

(That confuses me is looks like I can survive without it)

Many thanks.
Hieu