From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Vrabel <dvrabel@cantab.net>
Subject: Re: dom0 not seeing all of the assigned memory
Date: Thu, 23 Feb 2012 18:55:18 +0000
Message-ID: <4F468B96.5030703@cantab.net>
References: <CAA_XowMLKy0JrcNvV=igA5NC-neTNs6WWZt-deccvG53148WWg@mail.gmail.com>
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To: Henrik Olsson <henrik@fixme.se>
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On 22/02/12 22:19, Henrik Olsson wrote:
> Hi, i'm having some trouble with assigning memory to my dom0.
> 
> I've added "dom0_mem=8192M" to the xen command line yet "free -m"
> reports only 5686MB total.

[    0.000000] Freeing  6f000-100000 pfn range: 593920 pages freed
[    0.000000] 1-1 mapping on 6f000->100000
[    0.000000] Released 595312 pages of unused memory

This accounts for most of your "missing" memory.  To get it back you
need to adjust the balloon driver's target to the amount of memory you want.

David