Re: [Xen-devel] struct xen_add_to_physmap UNION

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Fri, 2012-10-12 at 00:26 +0100, Mukesh Rathor wrote:
> Hi,
> 
> What's the latest on the union of size/foreign_domid. I don't see it
> checked in xen unstable. Final decision is to unionize it, right? It
> doesn't matter for PVH either way.

I think the final decision is to go with XENMEM_add_to_physmap_range,
see <1349433507-21148-1-git-send-email-ian.campbell@xxxxxxxxxx>.

Ian.

> 
> +++ b/xen/include/public/memory.h       Thu Oct 11 16:24:47 2012 -0700
> @@ -208,14 +208,19 @@ struct xen_add_to_physmap {
>      /* Which domain to change the mapping for. */
>      domid_t domid;
>  
> -    /* Number of pages to go through for gmfn_range */
> -    uint16_t    size;
> +    union {
> +        /* Number of pages to go through for gmfn_range */
> +        uint16_t    size;
> +        /* IFF XENMAPSPACE_gmfn_foreign */
> +        domid_t foreign_domid;
> +    } u;
> 
> 
> thanks,
> Mukesh



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