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Date: Thu, 12 Oct 2017 19:07:27 -0400 (EDT)
From: Pankaj Gupta <pagupta@redhat.com>
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Subject: Re: [Qemu-devel] [RFC 2/2] KVM: add virtio-pmem driver
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To: Dan Williams <dan.j.williams@intel.com>
Cc: Rik van Riel <riel@redhat.com>, linux-kernel@vger.kernel.org, KVM list <kvm@vger.kernel.org>, Qemu Developers <qemu-devel@nongnu.org>, linux-nvdimm <linux-nvdimm@ml01.01.org>, Linux MM <linux-mm@kvack.org>, Jan Kara <jack@suse.cz>, Stefan Hajnoczi <stefanha@redhat.com>, Haozhong Zhang <haozhong.zhang@intel.com>, Nitesh Narayan Lal <nilal@redhat.com>, Kevin Wolf <kwolf@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, Ross Zwisler <ross.zwisler@intel.com>, David Hildenbrand <david@redhat.com>, Xiao Guangrong <xiaoguangrong.eric@gmail.com>


> > Dan,
> >
> > I have a query regarding below patch [*]. My assumption is its halted
> > because of memory hotplug restructuring work? Anything I am missing
> > here?
> >
> > [*] https://www.mail-archive.com/linux-nvdimm@lists.01.org/msg02978.html
> 
> It's fallen to the back of my queue since the original driving need of
> platform firmware changing offsets from boot-to-boot is no longer an
> issue. However, it does mean that you need to arrange for 128MB
> aligned devm_memremap_pages() ranges for the foreseeable future.

o.k I will provide 128MB aligned pages to devm_memremap_pages() function.

Thanks,
Pankaj