Re: Para-virtualized audio drivers

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>>
>> 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.
>

My thinking is to have backend driver at kernel level. The backend
driver would receive requests from frontend driver. I agree that the
previous effort was to develop it in user space.

>Is it about Intel hardware as Liam has been working on?  Or is it

Liam's work is different.

>targeted as a generic Xen stuff like the patches you mentioned in the
>above?  The patchset above was about the user-space backend, IIRC.
>

I am trying to develop generic PV audio drivers for XEN. I see people 
have developed PV Storage and Network drivers in XEN and they
are up-streamed. So I was thinking to do that for audio as well.

Do you recall why the above patchset was not merged ?
any limitations or was it incomplete ? 

Regards,
Rakesh


>
>Takashi
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