[Openstack] Audio card for libvirt/kvm in folsom

Davide Guerri davide.guerri at gmail.com
Fri Jan 11 16:06:54 UTC 2013


Daniel, 孙玉新 
thanks you very much.

I'll try to make a clean patch and I'll submit it to OpenStack.

Cheers!
 Davide.


On 11/gen/2013, at 16:11, Daniel P. Berrange <berrange at redhat.com> wrote:

> On Fri, Jan 11, 2013 at 10:53:25PM +0800, 孙玉新 wrote:
>> Davide,
>> 
>> If you use KVM, it's possible to enable audio.
>> Please refer  http://libvirt.org/formatdomain.html#elementsSound
>> 
>> Here is some infomation about how to enable it in nova:
>> http://www.gossamer-threads.com/lists/openstack/operators/21302
>> 
>> Haven't test it, I think the steps should be:
>> 1. cp /usr/lib/python2.7/dist-packages/*nova*/virt/libvirt.xml.template
>> /etc/*nova/*
>> 2. add next line to *nova*.conf
>> --*libvirt_xml_template*=/etc/*nova*/libvirt.xml.template
>> 3. Edit /etc/*nova*/libvirt.xml.template, add the following lines:
>> 
>> <devices>
>>    <sound model='ich6'>
>>      <codec type='micro'/>
>>    <sound/>
>>  </devices>
>> 
>> Hope this is helpful.
> 
> 
> That won't work on Folsom since the libvirt.xml.template no longer
> exists.  See my reply elsewhere in this thread for how todo it in
> the Nova code.  If you want to just hack it in without modifying
> Nova though, it is possible to use a libvirt hook script:
> 
>  http://libvirt.org/hooks.html
> 
> this is invoked by libvirt immediately prior to launching a guest,
> allowing you to modify the XML that is used.
> 
> Daniel
> -- 
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