Re: [Xen-devel] pvops DomU kernels [was Re: "Hotplug Scripts not working ..." error on jaunty]

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

On 23/10/2009 21:37, "Jeremy Fitzhardinge" <jeremy@xxxxxxxx> wrote:

> Its not at all clear to me what Xen is objecting to here.  There are a
> few paths where it can end up at could_not_pin in get_page_from_l1e(),
> but I don't know which one is happening here.  I think it's the "if (
> unlikely(real_pg_owner != pg_owner) )" conditional, but I don't know
> what real_pg_owner means here.
> 
> Keir?

If you fail that test it means that the page does not belong to the domain
that the caller expected. In most cases, that means it was expected to
belong to the domain making the hypercall, but actually it does not belong
to it.

 -- Keir



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