On 8 June 2015 at 22:20, Julien Grall <julien.gr...@citrix.com> wrote:
> Hi Parth,
>
> On 17/05/2015 21:03, Parth Dixit wrote:
>>
>> In ACPI mmio regions are described in DSDT which requires
>> AML interpreter. Defer the mapping of mmio until DSDT is parsed in
>> DOM0 and map mmio's dynamically at the time of request.
>
>
> I'm against a such solution. Even though it's DOM0 we should avoid to allow
> him to map anything (RAM,...) on data abort.
I think we agreed to this solution
http://lists.xenproject.org/archives/html/xen-devel/2015-06/msg02059.html

> During DOM0 creation, we should map anything that is not RAM and not used by
> Xen to DOM0. IIRC, this is how it works on x86.
>
> I'm nearly sure we talked about it during the Linaro Connect. Please give
> details if you thing it won't work...
>
> Regards,
>
> --
> Julien Grall

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