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=-2.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_2 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 5F198C34021 for ; Mon, 17 Feb 2020 15:04:44 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 893C020801 for ; Mon, 17 Feb 2020 15:04:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=aepfle.de header.i=@aepfle.de header.b="F9PmRixw" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 893C020801 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=aepfle.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1j3hwc-0004Xz-HL; Mon, 17 Feb 2020 15:04:22 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1j3hwa-0004Xs-Va for xen-devel@lists.xen.org; Mon, 17 Feb 2020 15:04:21 +0000 X-Inumbo-ID: c5266bb6-5196-11ea-bc8e-bc764e2007e4 Received: from mo6-p00-ob.smtp.rzone.de (unknown [2a01:238:20a:202:5300::8]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id c5266bb6-5196-11ea-bc8e-bc764e2007e4; Mon, 17 Feb 2020 15:04:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1581951858; s=strato-dkim-0002; d=aepfle.de; h=References:In-Reply-To:Message-ID:Subject:Cc:To:From:Date: X-RZG-CLASS-ID:X-RZG-AUTH:From:Subject:Sender; bh=/CNtMw631LWdeR4+mvFuWBwRLGpTo9mA+OeDWPYt2ik=; b=F9PmRixw0kp2KF43tROwQRKVdf9Lx2LkHLn84quXkeBoZbDXgzQ7lPZch5vKxsB7lI gv/naxulpGrN9MOddd2a6i6Ov/9oRe0ojF+xBx5EnhfJRdpqX2lAtvP0S0Htc4WKHokQ 9go+OLZSBw7ZbGeI2ppG3yTgbIFlILArPkFX/bZAXiPJEtG7jKJYT0WKQQ/HPt5nmJiE JO2NCzDCU2UAoYTTh6TT+gTbA/HxOG00+NUf24KRDX20AdT4/7Agv3C7ttN6axulw206 /7KDhP/TspTa3txFp+9Fz/GmIC8l9kh6QkWEHe91+zV0wLvdkHcn02VtEB2VfAPPRK0a P0Aw== X-RZG-AUTH: ":P2EQZWCpfu+qG7CngxMFH1J+3q8wa/QED/SSGq+wjGiUC4AUztn93FPS2dyuYMlkjQ==" X-RZG-CLASS-ID: mo00 Received: from sender by smtp.strato.de (RZmta 46.1.12 SBL|AUTH) with ESMTPSA id 605caew1HF4H9W6 (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256 bits)) (Client did not present a certificate); Mon, 17 Feb 2020 16:04:17 +0100 (CET) Date: Mon, 17 Feb 2020 16:04:06 +0100 From: Olaf Hering To: "Durrant, Paul" Message-ID: <20200217160406.65aa2ed1.olaf@aepfle.de> In-Reply-To: <580201e5daa849399b79641bd610ec93@EX13D32EUC003.ant.amazon.com> References: <20200113113627.08786ba0.olaf@aepfle.de> <20200127123005.7d6767c2.olaf@aepfle.de> <580201e5daa849399b79641bd610ec93@EX13D32EUC003.ant.amazon.com> X-Mailer: Claws Mail 2019.12.31 (GTK+ 2.24.32; x86_64-suse-linux-gnu) MIME-Version: 1.0 Subject: Re: [Xen-devel] live migration from 4.12 to 4.13 fails due to qemu-xen bug X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: "xen-devel@lists.xen.org" Content-Type: multipart/mixed; boundary="===============9025244030896199714==" Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" --===============9025244030896199714== Content-Type: multipart/signed; micalg=pgp-sha256; boundary="Sig_/0j0OWmzMEKvz37n9mdNZSER"; protocol="application/pgp-signature" --Sig_/0j0OWmzMEKvz37n9mdNZSER Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Am Mon, 27 Jan 2020 11:54:37 +0000 schrieb "Durrant, Paul" : > I suppose. Could we have "pc-i440fx" as the default, which libxl prefix m= atches against qemu's supported versions to select the latest? I guess that= would work. This can not be fixed in libxl because libxl can not possibly know what is = inside the domU. With '-machine xenfv' the PCI device is at 0000:00:02.0/platform, while wit= h '-machine pc-i440fx-3.1,accel=3Dxen -device xen-platform' the PCI device = is somewhere else. As a result the receiving host rejects this approach: qemu-system-i386: Unknown savevm section or instance '0000:00:02.0/platform= ' 0. Make sure that your current VM setup matches your saved VM setup, incl= uding any hotplugged devices In my earlier testing I forced -machine pc-i440fx* on the sending side, and= did not spot the flaw in this patch for libxl. For short: we are doomed... 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