Re: [Xen-devel] real physical e820 table for dom0?

["Zhang, Yang Z" <yang.z.zhang@xxxxxxxxx>]

Konrad Rzeszutek Wilk wrote on 2014-03-07:
> On Fri, Mar 07, 2014 at 01:29:31AM +0000, Zhang, Yang Z wrote:
> 
> How do you use the dom0_mem_max= argument? And what version of Xen are
> you using?
> 

I tried it both in Xen and dom0, no help. But adding "dom0_mem=4096M,max:4096M" 
to xen cmdline helps.
I am using the latest Xen upstream.

> There was this patch:
> 
> commit d3db728125c4470a2d061ac10fa7395e18237263
> Author: Ian Campbell <Ian.Campbell@xxxxxxxxxx>
> Date:   Wed Dec 14 12:16:08 2011 +0000
> 
>     xen: only limit memory map to maximum reservation for domain 0.
>     
>     d312ae878b6a "xen: use maximum reservation to limit amount of usable
>     RAM" clamped the total amount of RAM to the current maximum
>     reservation. This is correct for dom0 but is not correct for guest
>     domains. In order to
> boot a guest
> 
> Perhaps you don't have it in the hypervisor?

Hypervisor? I find the patch in dom0.

Best regards,
Yang


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