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From: Dan Williams <dan.j.williams@intel.com>
Date: Thu, 12 Oct 2017 15:59:33 -0700
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Subject: Re: [Qemu-devel] [RFC 2/2] KVM: add virtio-pmem driver
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To: Pankaj Gupta <pagupta@redhat.com>
Cc: Rik van Riel <riel@redhat.com>, "linux-kernel@vger.kernel.org" <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>

On Thu, Oct 12, 2017 at 3:52 PM, Pankaj Gupta <pagupta@redhat.com> wrote:
> 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.