Hi Eric, Daniel, Thanks for the response. Sure let me try that. Its defeats the purpose of virDomainSetMetadata if you cant set <metadata> :) Individual API is written just to support that (obviously along with setting <title> and <description>). API takes domain pointer as its first argument which is the return value of virDomainDefine. As per my interpretation, you define the XML of <domain> first, grab an handle and call SetMetadata. That’s the way I was able to set <title> and <description> and that’s the way I feel we should set <metadata> as well UNLESS there is a reason for not doing it. Thanks, Ronak -----Original Message----- From: Eric Blake [mailto:eblake@xxxxxxxxxx] Sent: Tuesday, December 11, 2012 8:00 AM To: Daniel P. Berrange Cc: SHAH, Ronak (Ronak R); libvir-list@xxxxxxxxxx Subject: Re: virDomainSetMetadata --> qemuDomainSetMetadata On 12/11/2012 03:07 AM, Daniel P. Berrange wrote: > On Mon, Dec 10, 2012 at 11:33:34PM +0000, SHAH, Ronak (Ronak R) wrote: >> Hi, >> >> I have requirement to add <metadata> tag into the libvirt XML from the application. >> While calling virDomainSetMetadata which internally call >> qemuDomainSetMetadata (correct me here if I am wrong), I am getting following error: >> >> qemuDomainSetMetdata:12623 : argument unsupported: QEMU driver does >> not support<metadata> element >> >> Support for setting and getting <metadata> with special namespace is deliberately added in 0.9.10 of libvirt and I am using 0.9.13. >> I am surprise that the internal qemu driver is still cribbing out it. > > The QEMU driver does support the <metadata> element, but only if you > specify it when defining the XML as a whole (eg virDomainDefine). For > unknown reasons, the qemuDomainSetMetdata was not implemented to allow > for live updating of the <metadata>. That said, it's a nice beginner's project to implement that functionality, if you'd like to try your hand at writing the patch. -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list