Re: [Xen-devel] do_update_va_mapping_otherdomain()

[Keir Fraser <keir@xxxxxxxxxxxxx>]

On 14/3/07 13:23, "Jan Beulich" <jbeulich@xxxxxxxxxx> wrote:

> Isn't this hypercall broken, and should thus be removed as it is entirely
> unused, or alternatively be fixed? do_update_va_mapping() completely
> deals with current->domain in all respects, and guest_{,un}map_l1e()
> seem to also depend on dealing with current.

The hypercall is supposed to operate on the local address space, but map a
foreign page. It calls mod_l1_entry() which should refer to the foreign
domain when it obtains a reference to the page being mapped.

 -- Keir


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