Re: Grant tables

[Samuel Thibault <samuel.thibault@eu.citrix.com>]

Carlo Bertoldi, le Fri 04 Apr 2008 18:56:06 +0200, a écrit :
> Samuel Thibault wrote, on the 04/04/2008 17.31:
> 
> Thanks, for the prompt answer.
> > See tools/fs-back/fs-ops.c for instance (xc_gnttab* functions).
> >
> Ok, so I found this:
> 
> buf = xc_gnttab_map_grant_ref(mount->gnth,
>                                    mount->dom_id,
>                                    req->u.fwrite.gref,
>                                    PROT_READ);
> 
> it's fine, except that I don't understand how to obtain the gref. IOW 
> how can I build a grant reference from a domain?

To my knowledge, there is no user interface for that yet, you need to do
it from the Linux kernel.

Samuel