Re: [Linux-nvdimm] [PATCH 0/2] e820: Fix handling of NvDIMM chips

From: Christoph Hellwig
Date: Sun Feb 22 2015 - 11:27:31 EST

On Thu, Feb 19, 2015 at 11:25:37AM +0200, Boaz Harrosh wrote:
> I do not see why you need the nvdimm_type= kernel option at all.
> I have here a script that auto detects any NvDIMM. It works with all
> the chips that I have access to. And Also it has support for if you have
> memmap=sss\$aaa.
> For all these detected regions it will load a pmem device.
> It is easy to filter for any type of memory you want. What
> will the (annoying) kernel option give you?
> OK I might be jumping the guns, send the patch and I'll look
> at it.

The kernel option means we can autodetect the nvdimms in kernel space
with just that option set, no need for needing userspace setup.

How does your script / patch work?

I won't be back to my nvdimm enabled hardware until after LSF/MM,
so any work from me in this area will have to wait a bit.
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