[PATCH] xen: introduce xen_vring_use_dma

[Michael S. Tsirkin]

On Mon, Jun 29, 2020 at 06:25:41AM +0000, Peng Fan wrote:
> > > > > Anyway, re-reading the last messages of the original thread [1],
> > > > > it looks like Peng had a clear idea on how to fix the general issue.
> > > > > Peng, what happened with that?
> > >
> > > We shrinked the rpmsg reserved area to workaround the issue.
> > > So still use the dma apis in rpmsg.
> > >
> > > But here I am going to address domu android trusty issue using virtio.
> > 
> > My suggestion is to first of all fix DMA API so it works properly.
> 
> Could you please elaborate more details?
> 
> You mean the DMA API usage of rpmsg? Or xen domu dma_ops?
> 
> Thanks,
> Peng. 

Not 100% sure but I think xen dma ops.

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MST