RE: [virtio-dev] Would there be virtio-audio spec in future for clean audio interface

CC acrn community. 

There are quite some new virtio devices (audio, gpio, i2c, etc) included in
acrn project, as required in automotive/embedded usages. I know they 
have plan to upstream those bits, and now might be a good time to talk
about the plan. :-)

Thanks
Kevin

> -----Original Message-----
> From:  [mailto:]
> On Behalf Of Paolo Bonzini
> Sent: Tuesday, March 26, 2019 5:39 PM
> To: vlse <>
> Cc: ; 
> Subject: Re: [virtio-dev] Would there be virtio-audio spec in future for clean
> audio interface
> 
> On 26/03/19 01:48, vlse wrote:
> > On Mon, Mar 25, 2019 at 02:13:51PM +0100, Paolo Bonzini wrote:
> > Hi,
> >
> > No I don't have a contact with Project ACRN.
> >
> > ACRN is a Linux Foundation Project. Initially it was by Intel.
> > It is a hypervisor for embedded devices.
> > Website is https://projectacrn.org/.
> >
> > Their supported virtio-audio details:
> >  Vendor ID: 0x8086
> >  Device ID: 0x8603
> >  Subvendor ID: 0x8086
> >  Subdevice ID: 0xFFFD
> >
> > Another implementation from another developer from Intel.
> > Website: https://patchwork.freedesktop.org/patch/174013/
> > Author: Luo Xionghu <>
> >
> > Comments by Author: this patch only add audio device pci registration.
> >                     need add audio part to call audio Backend driver later.
> 
> Thanks, that's useful.  Xionghu, is there a public spec for
> virtio-audio, and/or does Intel intend to contribute it to the virtio
> specification?
> 
> Unfortunately device id 21 is already taken.  I'll send a patch to the
> specification that reserves id 25 for virtio-audio.
> 
> Thanks,
> 
> Paolo
> 
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