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

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:

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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!