Re: [PATCH 3/3] xen: eliminate scalability issues from initial mapping setup

[Juergen Gross]

On 09/04/2014 02:59 PM, David Vrabel wrote:
> On 04/09/14 13:38, Juergen Gross wrote:
> > Direct Xen to place the initial P->M table outside of the initial
> > mapping, as otherwise the 1G (implementation) / 2G (theoretical)
> > restriction on the size of the initial mapping limits the amount
> > of memory a domain can be handed initially.
>
> The three level p2m limits memory to 512 GiB on x86-64 but this patch
> doesn't seem to address this limit and thus seems a bit useless to me.

Yeah, there seem to be some bits missing...

I'll add another patch to support a 4 level p2m scheme in the kernel.
For the Xen tools I'll do it, too.


Juergen
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