Re: [Xen-devel] Grant tables from dom0 userspace?

["Christopher Clark" <christopher.clark@xxxxxxxxxxxx>]

Hey

Grant tables aren't the right interface for use from userspace, which
is why tools/libxc/xc_gnttab.c was removed. You should probably just
write a kernel module to do the mapping for you using grant tables and
then expose a custom interface to userspace from the module to trigger
the mapping as you need.

Christopher


On 3/9/06, Jacob Gorm Hansen <jacobg@xxxxxxx> wrote:
> hi,
>
> I would like to share some pages between my domU graphics frontend
> device, and the backend which runs in userspace in dom0. Right now I
> am doing this with my own scheme, but presumably grant tables would be
> the correct solution.
>
> Is it possible to use grant tables from dom0 userspace? There used to
> be a file called tools/libxc/xc_gnttab.c but that seems to be gone
> now.
>
> Jacob
>
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>

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