On 12/03/15 13:38, Tamas K Lengyel wrote:
> > + if ( flag == GV2M_WRITE )
> > + {
> > + switch ( t )
> > + {
> > + case p2m_ram_rw:
>
> > + case p2m_iommu_map_rw:
> > + case p2m_map_foreign:
> > + case p2m_grant_map_rw:
> > + case p2m_mmio_direct:
>
> We disallow guest copy from the above 4 types via get_page_from_gva. So
> I'm not sure if it's worth to check them here.
>
>
> You mean get_page_from_gva only works for p2m_ram_rw type? Is this the
> case for GV2M_READ as well?
Yes, currently p2m_ram_rw is the only type bound to a struct page.
--
Julien Grall
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