Re: [PATCH v3 11/19] audio: deprecate -soundhw pcspk

[Paolo Bonzini]

On 22/06/20 14:59, Thomas Huth wrote:
>> +static int pcspk_audio_init_soundhw(ISABus *bus)
>> +{
>> +    PCSpkState *s = pcspk_state;
>> +
>> +    warn_report("'-soundhw pcspk' is deprecated, "
>> +                "please set a backend using '-global 
>> isa-pcspk.audiodev=<name>' instead");
>> +    return pcspk_audio_init(s);
>> +}
> While "-soundhw pcspk" is quite easy to use for the average user, I
> think the "-global" options will be quite hard to figure out, especially
> once this deprecation message got removed again when -soundhw has been
> deleted. Could you maybe add a description how to configure the
> pc-speaker to docs/system/target-i386-desc.rst.inc, too?

-nic is an example of how a single option can work great for both
built-in and custom devices, and perhaps we could design something like
that for audio.  For example you could have

        # configure a builtin or default audio device
        # and an ALSA audiodev
        -sound alsa

        # configure an external audio device and a PA audiodev
        # options other than "model" go to audiodev
        -sound pa,model=sb16,fixed-settings=off

For more information: https://www.qemu.org/2018/05/31/nic-parameter/

I think we can go ahead with the deprecation, but -global and -device
are probably not good enough a replacement for actual removal.

Paolo