On Mon, Mar 30, 2015 at 5:24 PM, Ian Campbell <ian.campbell@citrix.com>
wrote:

> On Mon, 2015-03-30 at 17:14 +0200, Tamas K Lengyel wrote:
>
> >         According to ARMv8 ARM HPFAR is valid for any of these:
> >               * A Translation or Access Flag fault on a stage 2
> translation.
> >               * A stage 2 Address Size fault.
> >               * A fault on the stage 2 translation of an address
> accessed in a
> >                 stage 1 translation table walk.
> >
> >         I think what you are (correctly) saying is that it omits "a
> permission
> >         fault on a stage 2 translation", which is one of the cases which
> can
> >         occur under xenaccess. Which is shame :-(
> >
> > Hm, what I recall is that it is valid for permission faults as well,
> > but only and exclusively during s1ptw.
>
> Right, which is the third bullet I quoted. The issue I was referring to
> was the lack of permission faults being mentioned in the first bullet (!
> s1ptw case).
>
> Ian.
>

Yeap, that's the core of the problem..

Tamas