Re: [Xen-devel] Access I2C bus from guest/DomU on ARM board

[Andrii Anisov <andrii_anisov@xxxxxxxx>]

Hello Saumya,


On 18.01.18 09:50, Saumya Rajesh wrote:
> Actually I am planning to set up Android as guest in Xen.
I see.

> In order to enable sound in the Android guest, I need to passthrough 
> the audio codec device which communicates through the I2C bus. For 
> BE/FE scheme, I think sharing the internal DMA and clock would pose 
> problems. So I'm going to go ahead with the device passthrough way.
Passing through I2C bus to guest domain would not be enough to get sound 
in Android. You would face more dependencies, and they may appear not 
solvable.
> Any thoughts or inputs you can possibly give regarding this use case 
> will be very helpful and valuable.
We are using PV Audio solution for such a task:

https://lists.xenproject.org/archives/html/xen-devel/2017-03/msg02428.html
https://lkml.org/lkml/2017/8/7/115

--

*Andrii Anisov*



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