On Fri, Apr 08, 2011 at 09:18:59AM +0100, Ian Campbell wrote:
> On Thu, 2011-04-07 at 21:25 +0100, Konrad Rzeszutek Wilk wrote:
> > # HG changeset patch
> > # User Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
> > # Date 1302194186 14400
> > # Node ID decab6c21cc3d7ce4d4dad949d34ba35d4600490
> > # Parent 97763efc41f9b664cf6f7db653c9c3f51e50b358
> > tools: Add xc_domain_set_memory_map and xc_get_machine_memory_map calls.
> >
> > The later retrieves the E820 as seen by the hypervisor (completly
> > unchanged) and the second call sets the E820 for a specific guest.
> >
> > Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
> >
> > diff -r 97763efc41f9 -r decab6c21cc3 tools/libxc/xc_domain.c
> > --- a/tools/libxc/xc_domain.c Tue Apr 05 18:23:54 2011 +0100
> > +++ b/tools/libxc/xc_domain.c Thu Apr 07 12:36:26 2011 -0400
> > @@ -510,6 +510,55 @@
>
> Please add:
> [diff]
> showfunc = True
> to your ~/.hgrc
Aye aye
>
> >
> > return rc;
> > }
> > +
> > +int xc_domain_set_memory_map(xc_interface *xch,
> > + uint32_t domid,
> > + struct e820entry entries[],
> > + uint32_t nr_entries)
> > +{
> > + int rc;
> > + struct xen_foreign_memory_map fmap = {
> > + .domid = domid,
> > + .map = { .nr_entries = nr_entries }
> > + };
> > + DECLARE_HYPERCALL_BOUNCE(entries, nr_entries * sizeof(struct
> > e820entry),
> > + XC_HYPERCALL_BUFFER_BOUNCE_IN);
> > +
> > + if ( !entries || xc_hypercall_bounce_pre(xch, entries) )
> > + return -1;
> > +
> > + set_xen_guest_handle(fmap.map.buffer, entries);
> > +
> > + rc = do_memory_op(xch, XENMEM_set_memory_map, &fmap, sizeof(fmap));
> > +
> > + xc_hypercall_bounce_post(xch, entries);
> > +
> > + return rc;
> > +}
>
> Should probably reimplement xc_domain_set_memmap_limit() as a wrapper
> around this new function. And/or nuke it if that's an option.
Yes! Will do that.
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