Re: [Xen-devel] struct paging_mode's {write, cmpxchg}_guest_entry and guest_{map, get_eff}_l1e

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 15.10.15 at 11:39, <tim@xxxxxxx> wrote:
> At 02:56 -0600 on 15 Oct (1444877774), Jan Beulich wrote:
>> what's the reason that these aren't in struct shadow_paging_mode
>> instead? They're only being used by shadow code, and I can't see
>> an abstract reason why HAP would ever want to use them.
> 
> That seems fair.  In fact AFAICT they're only called for
> _translated-mode_ PV guests!
> 
> So we should just refuse to enter a translated-but-not-external paging
> mode, since that's not maintained and almost certainly doesn't work,
> and then these hooks can go away entirely.

Looking more closely, I think this is true for the latter two (in the
subject), but not the former two (and indeed migration triggers
them).

Jan


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