Re: [PATCH 1/1] arm64: mm: add config options for page table configuration

[Scott Branden]

Hi Will,

On 16-12-09 02:57 AM, Will Deacon wrote:
> On Thu, Dec 08, 2016 at 11:33:39AM -0800, Scott Branden wrote:
> > Since I currently have your attention:  I do think there is fundamental bug
> > in the ARM64 mm implementation.  If you look at /sys/devices/system/memory
> > it only shows the last memoryX section created after init.
>
> That directory doesn't seem to exist on my arm64 systems. Do I have to
> enable something specific in the .config?
I looked in the /sys/devices/system/memory at it doesn't look like it 
appears until memory hotplug is enabled in the system.  This is another 
patch I'm trying to work through at the same time:
https://www.mail-archive.com/linux-kernel@xxxxxxxxxxxxxxx/msg1284943.html

The internals of the memory management subsystem is not something I'm 
too familiar with at this point.
> Will
Regards,
Scott