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=-7.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 D7447C433C1 for ; Tue, 23 Mar 2021 06:44:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AE06F6198C for ; Tue, 23 Mar 2021 06:44:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229670AbhCWGne (ORCPT ); Tue, 23 Mar 2021 02:43:34 -0400 Received: from mx2.suse.de ([195.135.220.15]:49072 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229961AbhCWGn3 (ORCPT ); Tue, 23 Mar 2021 02:43:29 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1616481807; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=4+J7sSDIvj9y/zAn9QU5NutVEzWadCStd/aNpRQiSdo=; b=qQQzdVPkr+M1kwoWp1l4X2g4T0sUXkuxK+QyhkM2fZNZzseKA3+8A8K5g44fwOALNQPcsH sZDo12EqwB4Uci3RaLb8Wc7oT7Tg1FW590LxFZg2t8ooXVTpigXnZveTNKo8kuEiuCZnbm p1j9aL2Iy2BXT2/A3d3PozgFI6TqnB4= Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 90CBAAC1D; Tue, 23 Mar 2021 06:43:27 +0000 (UTC) Subject: Re: [PATCH 2/2] Revert "xen: fix p2m size in dom0 for disabled memory hotplug case" To: Roger Pau Monne , linux-kernel@vger.kernel.org Cc: Boris Ostrovsky , Stefano Stabellini , Jan Beulich , xen-devel@lists.xenproject.org References: <20210317110401.46322-1-roger.pau@citrix.com> <20210317110401.46322-3-roger.pau@citrix.com> From: =?UTF-8?B?SsO8cmdlbiBHcm/Dnw==?= Message-ID: Date: Tue, 23 Mar 2021 07:43:26 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.0 MIME-Version: 1.0 In-Reply-To: <20210317110401.46322-3-roger.pau@citrix.com> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="ifWB3LGqY1k1qOmNVnq2VDRqZzZaosRZ5" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --ifWB3LGqY1k1qOmNVnq2VDRqZzZaosRZ5 Content-Type: multipart/mixed; boundary="pUzoMSktAAxtEQwxmACON8972zP1zHqb6"; protected-headers="v1" From: =?UTF-8?B?SsO8cmdlbiBHcm/Dnw==?= To: Roger Pau Monne , linux-kernel@vger.kernel.org Cc: Boris Ostrovsky , Stefano Stabellini , Jan Beulich , xen-devel@lists.xenproject.org Message-ID: Subject: Re: [PATCH 2/2] Revert "xen: fix p2m size in dom0 for disabled memory hotplug case" References: <20210317110401.46322-1-roger.pau@citrix.com> <20210317110401.46322-3-roger.pau@citrix.com> In-Reply-To: <20210317110401.46322-3-roger.pau@citrix.com> --pUzoMSktAAxtEQwxmACON8972zP1zHqb6 Content-Type: multipart/mixed; boundary="------------A0B69D3B8ED2300231DFC1EF" Content-Language: en-US This is a multi-part message in MIME format. --------------A0B69D3B8ED2300231DFC1EF Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable On 17.03.21 12:04, Roger Pau Monne wrote: > This partially reverts commit 882213990d32fd224340a4533f6318dd152be4b2.= >=20 > There's no need to special case XEN_UNPOPULATED_ALLOC anymore in order > to correctly size the p2m. The generic memory hotplug option has > already been tied together with the Xen hotplug limit, so enabling > memory hotplug should already trigger a properly sized p2m on Xen PV. Can you add some words here that XEN_UNPOPULATED_ALLOC depends on MEMORY_HOTPLUG via ZONE_DEVICE? 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