Re: [Xen-devel] xen/arm: Hiding SMMUs from Dom0 when using ACPI on Xen

[Julien Grall <julien.grall@xxxxxxx>]

On 18/05/2017 21:02, Manish Jaggi wrote:
> In the IORT table using the  PCI-RC node, SMMU node and ITS node,
> RID->StreamID->Device-ID  mapping can be generated.
> As per IORT spec toady, same RID can be mapped to different StreamIDs
> using two ID Array elements with same RID range but different output
> reference.
> There exists no use case for such a scenario hence a clarification is
> required in IORT spec which states that RID range cannot overlap in the
> ID array.
I understand that.

> with this clarification in place, it is straight-forward to map RID to a
> device-ID by replacing output of SMMU to output of RCI-RC
I am not sure to follow your suggestion here. But I will wait a patch 
before commenting.
Cheers,

--
Julien Grall

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