[alsa-devel] Para-virtualized audio drivers

[Takashi Iwai]

On Mon, 17 Oct 2016 05:01:47 +0200,
Ughreja, Rakesh A wrote:
> 
> Hi Takashi and all,
> 
> I have some need to develop para virtualized audio drivers which can
> work with XEN hypervisor.
> 
> I see some attempt was made in the past.
> https://lists.xen.org/archives/html/xen-devel/2015-01/msg02125.html
> 
> I see one more material but with no code.
> http://rd.springer.com/chapter/10.1007%2F978-94-007-2105-0_46
> 
> I am thinking to develop pv-audio-frontend (running on Dom1) and 
> pv-audio-backend (running on Dom0) drivers all at kernel level.
> Backend driver owns the hardware. Frontend driver communicates with 
> backend driver using XENbus framework just like storage and network PV
> drivers.
> 
> Before I start, I wanted to check if there is any other
> work that has been done which I can take as base ?

I don't know of any other existing implementation for Xen.  The
question would be rather how you would implement the backend.

Is it about Intel hardware as Liam has been working on?  Or is it
targeted as a generic Xen stuff like the patches you mentioned in the
above?  The patchset above was about the user-space backend, IIRC.


Takashi