>>> On 28.08.15 at 18:10, <[email protected]> wrote:
> Namely Dom0 suffers from commit 5ae03990c1 ("xen/vtd: create RMRR
> mapping") having removed the creation of such mappings for non-
> translated guests.
>
> Reported-by: Malcolm Crossley <[email protected]>
> Signed-off-by: Jan Beulich <[email protected]>
Wei,
looks like I forgot to Cc you on the original submission.
Jan
> --- a/xen/arch/x86/mm/p2m.c
> +++ b/xen/arch/x86/mm/p2m.c
> @@ -957,7 +957,11 @@ int set_identity_p2m_entry(struct domain
> int ret;
>
> if ( !paging_mode_translate(p2m->domain) )
> - return 0;
> + {
> + if ( !need_iommu(d) )
> + return 0;
> + return iommu_map_page(d, gfn, gfn, IOMMUF_readable|IOMMUF_writable);
> + }
>
> gfn_lock(p2m, gfn, 0);
>
> @@ -1028,7 +1032,11 @@ int clear_identity_p2m_entry(struct doma
> int ret;
>
> if ( !paging_mode_translate(d) )
> - return 0;
> + {
> + if ( !need_iommu(d) )
> + return 0;
> + return iommu_unmap_page(d, gfn);
> + }
>
> gfn_lock(p2m, gfn, 0);
>
_______________________________________________
Xen-devel mailing list
[email protected]
http://lists.xen.org/xen-devel
