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Re: [Xen-devel] event notification

To: ravi kerur <rkerur@xxxxxxxxx>
Subject: Re: [Xen-devel] event notification
From: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Date: Mon, 8 Mar 2010 11:47:29 -0500
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On Sat, Mar 06, 2010 at 07:12:02PM -0800, ravi kerur wrote:
> Hi,
> Is there a mechanism available in Xen such that a kernel module in dom0 can
> register to it and when a VM(domU) is installed or deleted or suspend or
> resumed kernel module in domU can send notification to its counterpart in
> dom0. I have looked into xenbus mechanism used by PV drivers and it won't
> work for us. Inputs appreciated.

You can listen on udev events and see when a vif device has been added.
Also you can add pieces to the dom0 kernel to send uevents when a device
is suspended and do something.

Attached is a simple program to listen to all uevents..

> Thanks
> -RK

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Attachment: listen.c
Description: Text document

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