Re: [Xen-devel] [PATCH v4 07/14] x86/iommu: add IOMMU entries for p2m_mmio_direct pages

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 30.11.16 at 17:49, <roger.pau@xxxxxxxxxx> wrote:
> --- a/xen/include/asm-x86/p2m.h
> +++ b/xen/include/asm-x86/p2m.h
> @@ -834,6 +834,7 @@ static inline unsigned int p2m_get_iommu_flags(p2m_type_t 
> p2mt)
>      case p2m_grant_map_rw:
>      case p2m_ram_logdirty:
>      case p2m_map_foreign:
> +    case p2m_mmio_direct:
>          flags =  IOMMUF_readable | IOMMUF_writable;
>          break;

I think you need to take mmio_ro_ranges into account here.

Jan


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