Re: [Xen-devel] [PATCH 2/2] tools/xenstored: Drop mapping of the ring via foreign map

[Juergen Gross <jgross@xxxxxxxx>]

On 09.07.19 17:28, Andrew Cooper wrote:
> This is a vestigial remnent of the pre xenstored stub domain days.
>
> Foreign mapping via MFN is a privileged operation which is not
> necessary, because grant details are unconditionally set up during
> domain construction.  In practice, this means xenstored never uses its
> ability to foreign map the ring.
>
> Drop the ability completely, which removes the penultimate use of the
> unstable libxc interface.
>
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Reviewed-by: Juergen Gross <jgross@xxxxxxxx>


Juergen

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