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Enable audio virtualization in Xen

To: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>

From: "SHARMA, JYOTIRMOY" <JYOTIRMOY.SHARMA@xxxxxxx>

Date: Mon, 25 Jul 2022 11:08:02 +0000

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Thread-index: AdigFizJpGeQu9pXSearK44pKRlEjg==

Thread-topic: Enable audio virtualization in Xen

[AMD Official Use Only - General]

Hi all,

I am using ubuntu as dom 0 and also dom U (HVM). I want to play audio from “dom U” Ubuntu. I am new to Xen/virtualization in general.

From various reading I understood that I need to take following approach:

Use Xen front end ALSA driver in dom U
Use Qemu to connect to the backend ALSA driver in Dom 0

Can you please let me know if this approach is fine? If yes, I have following questions:

Do I need to recompile Ubuntu to support Xen front end ALSA driver? Or will Ubuntu iso file already have it enabled?
Ho do I configure Qemu to enable backend driver?

Regards,

Jyotirmoy