Re: [Xen-devel] [PATCH 6/7] xen/setup: Make dom0_mem=XGB behavior besimilar to classic Xen kernels.

From: Konrad Rzeszutek Wilk
Date: Fri Apr 06 2012 - 17:06:03 EST


On Tue, Apr 03, 2012 at 10:46:41AM +0100, Jan Beulich wrote:
> >>> On 03.04.12 at 10:58, David Vrabel <david.vrabel@xxxxxxxxxx> wrote:
> > With your new behaviour it will no longer possible to specify an
> > unlimited balloon but a limited number of initial pages. This is
> > behaviour that Jan said he used.
>
> An unlimited balloon was never possible afaict (as that would have
> implied setting up an "infinite" number of struct page instances at
> boot time.
>
> What I'm using is "dom0_mem=-<num>M" together with the kernel
> option "mem=<num>G", such that max-balloon > initial alloc (usually
> I set max-balloon to approximately the amount of memory in the
> system, so the upper limit is "infinite" in the sense that I can't go
> higher anyway, but it's not truly infinity).

Couldn't you do the same thing with 'dom0_mem=X,max:Y'
>
> Jan
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