From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4E29BC28E83 for ; Fri, 4 Sep 2020 12:42:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 02BCF2078E for ; Fri, 4 Sep 2020 12:42:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730241AbgIDMmX (ORCPT ); Fri, 4 Sep 2020 08:42:23 -0400 Received: from mx2.suse.de ([195.135.220.15]:56646 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728588AbgIDMlC (ORCPT ); Fri, 4 Sep 2020 08:41:02 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 85C67ACB5; Fri, 4 Sep 2020 12:40:59 +0000 (UTC) Subject: Re: [PATCH v5 0/3] xen/balloon: fixes for memory hotplug To: Roger Pau Monne , linux-kernel@vger.kernel.org Cc: Boris Ostrovsky , Stefano Stabellini , xen-devel@lists.xenproject.org References: <20200901083326.21264-1-roger.pau@citrix.com> From: =?UTF-8?B?SsO8cmdlbiBHcm/Dnw==?= Message-ID: <0b3daa72-692f-e747-4842-48a7a1b66dd4@suse.com> Date: Fri, 4 Sep 2020 14:40:58 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: <20200901083326.21264-1-roger.pau@citrix.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 01.09.20 10:33, Roger Pau Monne wrote: > Hello, > > The following series contain some fixes in order to split Xen > unpopulated memory handling from the ballooning driver using the > ZONE_DEVICE functionality, so that physical memory regions used to map > foreign pages are not tied to memory hotplug. > > Note this is currently only available for x86 due to Arm using an > identity map for dom0 p2m and thus needing special handling. > > Thanks, Roger. > > Roger Pau Monne (3): > xen/balloon: add header guard > memremap: rename MEMORY_DEVICE_DEVDAX to MEMORY_DEVICE_GENERIC > xen: add helpers to allocate unpopulated memory > > drivers/dax/device.c | 2 +- > drivers/gpu/drm/xen/xen_drm_front_gem.c | 9 +- > drivers/xen/Kconfig | 11 ++ > drivers/xen/Makefile | 1 + > drivers/xen/balloon.c | 4 +- > drivers/xen/grant-table.c | 4 +- > drivers/xen/privcmd.c | 4 +- > drivers/xen/unpopulated-alloc.c | 185 ++++++++++++++++++++++++ > drivers/xen/xenbus/xenbus_client.c | 6 +- > drivers/xen/xlate_mmu.c | 4 +- > include/linux/memremap.h | 9 +- > include/xen/balloon.h | 4 + > include/xen/xen.h | 9 ++ > mm/memremap.c | 2 +- > 14 files changed, 232 insertions(+), 22 deletions(-) > create mode 100644 drivers/xen/unpopulated-alloc.c > Applied the series to xen/tip.git for-linus-5.9 Juergen