From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dan Williams Subject: Re: [RFC 2/2] KVM: add virtio-pmem driver Date: Thu, 12 Oct 2017 15:59:33 -0700 Message-ID: References: <20171012155027.3277-1-pagupta@redhat.com> <20171012155027.3277-3-pagupta@redhat.com> <1567317495.19940236.1507843517318.JavaMail.zimbra@redhat.com> <1363955128.19944709.1507846719987.JavaMail.zimbra@redhat.com> <1507847249.21121.207.camel@redhat.com> <1111804283.19946669.1507848765955.JavaMail.zimbra@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Return-path: In-Reply-To: <1111804283.19946669.1507848765955.JavaMail.zimbra@redhat.com> Sender: owner-linux-mm@kvack.org To: Pankaj Gupta Cc: Rik van Riel , "linux-kernel@vger.kernel.org" , KVM list , Qemu Developers , linux-nvdimm , Linux MM , Jan Kara , Stefan Hajnoczi , Haozhong Zhang , Nitesh Narayan Lal , Kevin Wolf , Paolo Bonzini , Ross Zwisler , David Hildenbrand , Xiao Guangrong List-Id: linux-nvdimm@lists.01.org On Thu, Oct 12, 2017 at 3:52 PM, Pankaj Gupta 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. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753737AbdJLW7g (ORCPT ); Thu, 12 Oct 2017 18:59:36 -0400 Received: from mail-oi0-f42.google.com ([209.85.218.42]:44679 "EHLO mail-oi0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753513AbdJLW7e (ORCPT ); Thu, 12 Oct 2017 18:59:34 -0400 X-Google-Smtp-Source: ABhQp+Ss6yvkfKTDpaWeiQYKSAXx1qt9E8k7fzKwm4ApbOa8MP0UJdZcagImhmUIUNa677+oE+GLRNmL3TQb9bheEro= MIME-Version: 1.0 In-Reply-To: <1111804283.19946669.1507848765955.JavaMail.zimbra@redhat.com> References: <20171012155027.3277-1-pagupta@redhat.com> <20171012155027.3277-3-pagupta@redhat.com> <1567317495.19940236.1507843517318.JavaMail.zimbra@redhat.com> <1363955128.19944709.1507846719987.JavaMail.zimbra@redhat.com> <1507847249.21121.207.camel@redhat.com> <1111804283.19946669.1507848765955.JavaMail.zimbra@redhat.com> From: Dan Williams Date: Thu, 12 Oct 2017 15:59:33 -0700 Message-ID: Subject: Re: [RFC 2/2] KVM: add virtio-pmem driver To: Pankaj Gupta Cc: Rik van Riel , "linux-kernel@vger.kernel.org" , KVM list , Qemu Developers , linux-nvdimm , Linux MM , Jan Kara , Stefan Hajnoczi , Haozhong Zhang , Nitesh Narayan Lal , Kevin Wolf , Paolo Bonzini , Ross Zwisler , David Hildenbrand , Xiao Guangrong Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Oct 12, 2017 at 3:52 PM, Pankaj Gupta 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. From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45003) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1e2mRz-0003r2-SZ for qemu-devel@nongnu.org; Thu, 12 Oct 2017 18:59:36 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1e2mRz-0006b1-19 for qemu-devel@nongnu.org; Thu, 12 Oct 2017 18:59:35 -0400 Received: from mail-oi0-x232.google.com ([2607:f8b0:4003:c06::232]:47246) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1e2mRy-0006al-Os for qemu-devel@nongnu.org; Thu, 12 Oct 2017 18:59:34 -0400 Received: by mail-oi0-x232.google.com with SMTP id h200so10877842oib.4 for ; Thu, 12 Oct 2017 15:59:34 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <1111804283.19946669.1507848765955.JavaMail.zimbra@redhat.com> References: <20171012155027.3277-1-pagupta@redhat.com> <20171012155027.3277-3-pagupta@redhat.com> <1567317495.19940236.1507843517318.JavaMail.zimbra@redhat.com> <1363955128.19944709.1507846719987.JavaMail.zimbra@redhat.com> <1507847249.21121.207.camel@redhat.com> <1111804283.19946669.1507848765955.JavaMail.zimbra@redhat.com> From: Dan Williams Date: Thu, 12 Oct 2017 15:59:33 -0700 Message-ID: Content-Type: text/plain; charset="UTF-8" Subject: Re: [Qemu-devel] [RFC 2/2] KVM: add virtio-pmem driver List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Pankaj Gupta Cc: Rik van Riel , "linux-kernel@vger.kernel.org" , KVM list , Qemu Developers , linux-nvdimm , Linux MM , Jan Kara , Stefan Hajnoczi , Haozhong Zhang , Nitesh Narayan Lal , Kevin Wolf , Paolo Bonzini , Ross Zwisler , David Hildenbrand , Xiao Guangrong On Thu, Oct 12, 2017 at 3:52 PM, Pankaj Gupta 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.