Intel HD Audio: sound stops working in Xen PV dom0 in >=5.17

[Marek Marczykowski-Górecki]

On Fri, Jan 20, 2023 at 02:19:08PM +0100, Takashi Iwai wrote:
> On Fri, 20 Jan 2023 13:11:34 +0100,
> Marek Marczykowski-Górecki wrote:
> > 
> It's puzzling, then.  The patch changes the allocation with the
> dma_alloc_coherent(), and that's what does with the Kconfig hack
> you've tested.  One possible significant difference is the use of the
> DMA address.
> 
> > BTW, xen_domain() will also return true on PVH/HVM domain, which should
> > not need any of this special treatment. It's PV that is weird.
> 
> OK, then it can be an overkill.
> 
> Below is another try: it changes the different use of the DMA buffer
> address.  Let's cross fingers.

3 days update and it still works!

-- 
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
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