Re: [virtio-comment] virtio device ID

["Michael S. Tsirkin" <mst@redhat.com>]

On Tue, Dec 05, 2017 at 01:25:03PM +0000, Pape, Andreas (ADITG/ESB) wrote:
> Dear OASIS Team,
> 
>  
> 
> I am currently working on a guest sound card driver based on VIRTIO (Linux
> guest ->ALSA driver).
> 
> The virtio spec (Appendix B3) suggests to use ‘65535 and backward’ for
> experimental drivers – but when looking deeper at the spec /probing it seems
> that device ID’s are limited to 63.
> 
> So currently I use 63 (PCI Device ID 0x1040+63d ) to avoid conflicts with
> upcoming new ID’s.
> 
>  
> 
> The host implementation will probably not be open source but nevertheless I
> feel that reserving at least an own unique ID for ‘sound transport’ or ‘sound
> card’ would be helpful.
> 
> 
> Is there a chance to get an ID for such device type reserved?
> 

If you don't open-source anything, then gain from using the virtio
ID range is minimal. Just use your own vendor ID and then you
are free to do whatever device id you want.

If I misunderstood your intent pls correct me.

> 
>  
> 
> Thank You,
> 
>  
> 
>  
> 
> Best regards
> 
>  
> 
> Andreas Pape
> 
> Advanced Driver Information Technology GmbH
> Engineering Software Base (ADITG/ESB)
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> 31139 Hildesheim
> Germany
> 
> Tel. +49 5121 49 6979
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> 
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