Re: [Xen-devel] [RFC PATCH 3/3] tools, libxl: handle the iomem parameter with the memory_mapping hcall

[Julien Grall <julien.grall@xxxxxxxxxx>]

On 03/03/14 18:32, Dario Faggioli wrote:
> Right. So, just to make sure I understand it correctly, you're saying
> that it is fine to have the hypercall implemented and called sort of
> like how Arianna is doing it, modulo moving the call outside of common
> ARM and x86 code, as Julien pointed out, is this correct? If yes, I
> (FWIW) totally concur. :-)
I think in both solution, this hypercall should be implemented :).

> For the sake of this series, do you think there is something that
> Arianna should do, if not to ensure 100% consistency (which is not Xen's
> job, in this case) but, perhaps, just to put things on the safe side?
>
> Right. Again, and sorry for not getting it just from the above, do you
> think this is something Arianna should take care of, when reposting the
> series, or can/should it be done also later?
I think Arianna solution's might not work if the 1:1 mapping clash with 
existing layout. I might help Arianna on this subject because it will be 
useful to passthrough a device to the guest.
--
Julien Grall

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