Re: [Xen-devel] [PATCH 4 of 4] xenpaging: initial libxl support

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Mon, 2011-11-21 at 16:40 +0000, George Dunlap wrote:
> On Mon, Nov 21, 2011 at 3:13 PM, Olaf Hering <olaf@xxxxxxxxx> wrote:
> > On Mon, Nov 21, Stefano Stabellini wrote:
> >
> >> what if tot_memkb is bigger than target_memkb? Or even bigger than
> >> max_memkb?
> >
> > tot_memkb is unrelated to target_memkb, also somewhat unrelated to
> > max_memkb.
> 
> I'd love to contribute to this discussion, but I don't know what these
> different names mean.  I think what we need to talk about is all of
> the different memory parameters we need, and then what each of the
> individual names mean -- what they currently map to, and then what we
> want them to map to.  At very least they should be in a comment
> somewhere.

tools/libxl/libxl_memory.txt covers some of that (and Olaf patched it
IIRC) although it is not so clear on the mapping to xl configuration
keys.

Ian.

> 
> >
> > xenpaging will look at tot_memkb value (at "memory/target-tot_pages" to
> > be precise) and try to reach that number of domain->tot_pages. If the
> > tot_memkb number is larger than max_memkb nothing will happen.
> >
> >
> > Right now there is not much checking anyway, memory=1024 maxmem=1 in the
> > config is accepted in my testing.
> >
> > Olaf
> >
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@xxxxxxxxxxxxxxxxxxx
> > http://lists.xensource.com/xen-devel
> >



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