Re: [Xen-devel] [PATCH 2/2] libxl: xl mem-set should not enforce memory limits

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Fri, Mar 15, 2013 at 04:32:53PM +0000, Ian Campbell wrote:
> On Fri, 2013-03-15 at 16:25 +0000, Daniel Kiper wrote:
> > xl mem-set should not enforce memory limits. If it does
> 
> NB the title says libxl but this is actually an xl change.
> 
> > then after decreasing reservation there is no chance to
> > increase reservation directly from guest domain by
> > writing to /sys/devices/system/xen_memory/xen_memory0/target*
> 
> This is a feature not a bug I think. It is intentional that if the host
> admin sets a memory target the a guest admin cannot exceed that limit.

Even thought 'xm' did not do it?
> 
> Ian.
> 
> > 
> > Signed-off-by: Daniel Kiper <daniel.kiper@xxxxxxxxxx>
> > ---
> >  tools/libxl/xl_cmdimpl.c |    2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/tools/libxl/xl_cmdimpl.c b/tools/libxl/xl_cmdimpl.c
> > index a98705e..9add281 100644
> > --- a/tools/libxl/xl_cmdimpl.c
> > +++ b/tools/libxl/xl_cmdimpl.c
> > @@ -2492,7 +2492,7 @@ static void set_memory_target(uint32_t domid, const 
> > char *mem)
> >          exit(3);
> >      }
> >  
> > -    libxl_set_memory_target(ctx, domid, memorykb, 0, /* enforce */ 1);
> > +    libxl_set_memory_target(ctx, domid, memorykb, 0, 0);
> >  }
> >  
> >  int main_memset(int argc, char **argv)
> 
> 
> 
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