From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Andrew D. Ball" Subject: Re: Regarding Xenstore/Xenbus Date: Mon, 20 Nov 2006 17:02:45 -0500 Message-ID: <1164060166.24087.53.camel@localhost> References: Reply-To: aball@linux.vnet.ibm.com Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Umar Farooq Minhas Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org I think that's right. Look into using libxenstore inside of the domU -- I think there are functions to do what you want there. Peace. Andrew On Sun, 2006-11-19 at 03:09 -0500, Umar Farooq Minhas wrote: > Hi everyone, > > I have installed Xen on OpenSUSE Linux 10.1 and am just starting to > develop with Xen. I want to implement a very straightforward > application in domUs which simply gets notified whenever a resource > provisioning change (specifically for cpu/memory allocation) is made > for that particular domU using for example xm mem-set. From the > readings that I have done so far it seems that since xenstore is a > shared database between all the domains which keeps track of domain > specific values(including values of allocated resources) and that it > can be accessed through xenbus from domUs so what I need to do is to > write a program that would access xenstore from withing that domU over > xenbus. Or more specifically I will have to register a 'watch' in > xenstore (just as the balloon driver does) to monitor memory values. I > don't know whether this is true or not. I would greatly appreciate if > someone could verify this understanding or point me in the right > direction. Also if this is true some pointers to start developing with > xenbus/xenstore would be very helpful. > > A prompt response will be appreciated as I am running on a deadline :) > > Thanks. > -Umar > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel