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Date: Mon, 8 Feb 2016 11:43:27 +0000
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
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To: Shannon Zhao <zhaoshenglong@huawei.com>
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Subject: Re: [PATCH v4 05/17] xen: memory : Add new XENMAPSPACE type
 XENMAPSPACE_dev_mmio
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On Fri, 5 Feb 2016, Shannon Zhao wrote:
> From: Shannon Zhao <shannon.zhao@linaro.org>
> 
> Add a new type of Xen map space for Dom0 to map device's MMIO region.
> 
> Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
> ---
>  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.