Re: [PATCH v5 1/9] xen/arm: don't pass iommu properties to hwdom for iommu-map

[Julien Grall <julien@xxxxxxx>]

Hi,

On 23/10/2023 10:00, Michal Orzel wrote:
> As for supporting legacy bindings, I think
> we would be good if we search for #iommu-cells || mmu-masters
For me, it is clear in the device-tree bindings documentation that 
#iommu-cells will belong to a IOMMU node. It is less clear for 
mmu-masters, therefore I would rather prefer if we use the compatible to 
detect legacy bindings.
I am not that concerned to properly remove any nodes using legacy 
bindings because new platforms should not use it. So we could also keep 
the existing behavior (i.e. exposing the IOMMU unless it is used by Xen).
Cheers,

--
Julien Grall