Re: [Xen-devel] [PATCH 4/6] arm: add a small kconfig for Renesas RCar H3

[Julien Grall <julien.grall@xxxxxxx>]

On 24/04/2018 12:04, Andrii Anisov wrote:
> Hello Julien,
>
>
> On 24.04.18 13:06, Julien Grall wrote:
> > I believe that passthrough should be kept as core Xen, it is small and 
> > quite tight to the rest of Xen.
> It might be.
>
> > But I would be interested to know what would be the rationale to 
> > disable that. Do you foresee certification on IOMMU-less platform?
> I would give TI Jacinto6 as an example. It is an automotive focused SoC, 
> has no IOMMU. BTW, I have a strong feeling that some J6 based automotive 
> systems with XEN already reached production stage. I'm not really sure 
> if they are certified, but anyway.
> So, yes, I'm pretty sure IOMMU-less platforms with XEN would require 
> certification.
Can you quantify what would be the cost of keeping that code around for 
IOMMU-less platform?
Cheers,

--
Julien Grall

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