Re: [Xen-devel] Re: [PATCH][v2.6.29][XEN] Return unused memory tohypervisor

[Miroslav Rezanina]

----- "Jeremy Fitzhardinge" <jeremy@xxxxxxxx> wrote:

> From: "Jeremy Fitzhardinge" <jeremy@xxxxxxxx>
> To: "Miroslav Rezanina" <mrezanin@xxxxxxxxxx>
> Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, "Konrad Rzeszutek Wilk" <konrad.wilk@xxxxxxxxxx>
> Sent: Thursday, September 17, 2009 6:47:10 PM GMT +01:00 Amsterdam / Berlin / Bern / Rome / Stockholm / Vienna
> Subject: Re: [Xen-devel] Re: [PATCH][v2.6.29][XEN] Return unused memory to hypervisor
>
> On 09/17/09 01:14, Miroslav Rezanina wrote:
> > Hi Jeremy,
> > I check your application. It won't work correctly. You are calling
> return_unused_memory in xen_memory_setup that is too soon.
> > When you are calling it, there is no hole in map in any case.
> Calling should be in xen_post_allocator_init function (in
> arch/x86/xen/mmu.c).
> >   
> 
> OK.  Where does the e820 map get changed in the meantime?
> 
xen_memory_setup just set RAM map from 0 to initial nr_pages. Only one place I'm sure map is changed is
parsing mem parameter. You mentioned that there can be other cases when some parts of map are removed.
>     J
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel

-- 
Miroslav Rezanina
Software Engineer - Virtualization Team - XEN kernel

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/