Re: [Xen-devel] Dom0 Memory

[David Vrabel <dvrabel@xxxxxxxxxx>]

On 31/08/12 10:52, Jonathan Tripathy wrote:
> Hi Everyone,
> 
> I have set dom0_mem=2048M in grub2, set dom0 minimum memory to 2048 in
> xend-config (and also disabled ballooning). However, when I do "free -m"
> in the Dom0, I only see 1567 total RAM (xentop reports 2048ish).

Does this article provide the answers?

http://blog.xen.org/index.php/2012/04/30/do%ef%bb%bfm0-memory-where-it-has-not-gone/

David

> Is this a known issue? I am also aware that this problem occurs in the
> DomUs as well, but never a discrepancy that big.
> 
> The kernel I'm using is 3.2.28. Xen is version 4.1.3 (although I'm using
> a hack in setup.c where I changed the order of the if block is give
> priority to the 802 memory map. I needed to do this as my motherboard
> uses UEFI. Keir made a patch for this for unstable recently).

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