Re: [Xen-devel] [PATCH v4 05/17] xen: memory : Add new XENMAPSPACE type XENMAPSPACE_dev_mmio

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

On Fri, 5 Feb 2016, Shannon Zhao wrote:
> From: Shannon Zhao <shannon.zhao@xxxxxxxxxx>
> 
> Add a new type of Xen map space for Dom0 to map device's MMIO region.
> 
> Signed-off-by: Shannon Zhao <shannon.zhao@xxxxxxxxxx>
> ---
>  include/xen/interface/memory.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/include/xen/interface/memory.h b/include/xen/interface/memory.h
> index 2ecfe4f..9aa8988 100644
> --- a/include/xen/interface/memory.h
> +++ b/include/xen/interface/memory.h
> @@ -160,6 +160,7 @@ DEFINE_GUEST_HANDLE_STRUCT(xen_machphys_mapping_t);
>  #define XENMAPSPACE_gmfn_foreign 4 /* GMFN from another dom,
>                                   * XENMEM_add_to_physmap_range only.
>                                   */
> +#define XENMAPSPACE_dev_mmio     5 /* device mmio region */
>  
>  /*
>   * Sets the GPFN at which a particular page appears in the specified guest's

This patch needs to wait at least until the corresponding Xen patch
(the one which introduces XENMAPSPACE_dev_mmio on the Xen side) is
Acked by one of the Xen maintainers.

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