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From: Andrey Korolyov <andrey@xdel.ru>
Date: Thu, 18 Jun 2015 01:40:29 +0300
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Subject: Re: [Qemu-devel] incorrect memory size inside vm
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To: Vasiliy Tolstov <v.tolstov@selfip.ru>
Cc: libvir-list <libvir-list@redhat.com>, "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>

On Thu, Jun 18, 2015 at 12:21 AM, Vasiliy Tolstov <v.tolstov@selfip.ru> wrote:
> 2015-06-17 19:26 GMT+03:00 Vasiliy Tolstov <v.tolstov@selfip.ru>:
>> This is band news =( i have debian wheezy that have old kernel...
>
>
> Does it possible to get proper results with balloon ? For example by
> patching qemu or something like this?
>
>

Yes, but I`m afraid that I don`t fully understand why do you need this
when pure hotplug mechanism is available, aside may be nice memory
stats from balloon and easy-to-use deflation. Just populate a couple
of static dimms with small enough 'base' e820 memory and use  balloon
on this setup, you`ll get the reserved memory footprint as small as it
would be in setup with equal overall amount of memory populated via
BIOS. For example, you may use -m 128 ... {handful amount of memory
placed in memory slots} setup to achieve the thing you want.