Re: [Xen-users] High Memory Support on systems >1GB

[Rene Marticke <install@xxxxxxxxxxxx>]

Ernst Bachmann schrieb:
> On Friday 13 January 2006 05:55, John A. Sullivan III wrote:
>   
> > On a Xen 2.0.7 host with between one and four GB of RAM but no single
> > domain larger than 880MB, how should kernel High Memory Support be
> > configured? Should it be off since no domain kernel is using more than
> > 880? Should dom0 have it enabled to manage all the memory? Should all
> > the domains have it since they are drawing on a pool larger than 880 MB?
> >
> > Is the answer the same for Xen 3.0? Thanks - John
> >     
> Since the xen hypervisor needs the same highmem setting as the kernels running 
> on it, you need the following settings to use all your ram:
> - 1 GB: no highmem needed
> 1-3 GB: 3GB higmem
> 4GB: PAE or 64bit
>
> and yes, its the same for xen3
>
> /Ernst
Hi, I compiled xen 2.07 with the pae part in make world.
But i get only 830MB on a DomU (mem = 2048 in configfile)

I also recompiled the Dom0 Kernel. But i get no success. Can someone 
discribe this i bit closer please how to get 2 GB Ram in a DomU ?
Best Regards
Rene


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