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Re: [Xen-devel] [PATCH v2 21/23] xen: update xen_add_to_physmap interface



On Mon, Aug 06, 2012 at 03:27:24PM +0100, Stefano Stabellini wrote:
> Update struct xen_add_to_physmap to be in sync with Xen's version of the
> structure.
> The size field was introduced by:
> 
> changeset:   24164:707d27fe03e7
> user:        Jean Guyader <jean.guyader@xxxxxxxxxxxxx>
> date:        Fri Nov 18 13:42:08 2011 +0000
> summary:     mm: New XENMEM space, XENMAPSPACE_gmfn_range
> 
> According to the comment:
> 
> "This new field .size is located in the 16 bits padding between .domid
> and .space in struct xen_add_to_physmap to stay compatible with older
> versions."
> 
> Changes in v2:

Looks good. Let me take this as in my tree to prep it for Mukesh's patches.

> 
> - remove erroneous comment in the commit message.
> 
> Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
> ---
>  include/xen/interface/memory.h |    3 +++
>  1 files changed, 3 insertions(+), 0 deletions(-)
> 
> diff --git a/include/xen/interface/memory.h b/include/xen/interface/memory.h
> index b5c3098..b66d04c 100644
> --- a/include/xen/interface/memory.h
> +++ b/include/xen/interface/memory.h
> @@ -163,6 +163,9 @@ 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;
> +
>      /* Source mapping space. */
>  #define XENMAPSPACE_shared_info 0 /* shared info page */
>  #define XENMAPSPACE_grant_table 1 /* grant table page */
> -- 
> 1.7.2.5

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