From patchwork Wed Dec 6 14:44:38 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Halil Pasic X-Patchwork-Id: 845202 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3ysLy31RzZz9s71 for ; Thu, 7 Dec 2017 01:45:30 +1100 (AEDT) Received: from localhost ([::1]:56005 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eMawx-00068V-P8 for incoming@patchwork.ozlabs.org; Wed, 06 Dec 2017 09:45:27 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50787) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eMawR-00067h-2n for qemu-devel@nongnu.org; Wed, 06 Dec 2017 09:44:56 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eMawN-0001dG-T1 for qemu-devel@nongnu.org; Wed, 06 Dec 2017 09:44:55 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:42234) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1eMawN-0001ch-Jg for qemu-devel@nongnu.org; Wed, 06 Dec 2017 09:44:51 -0500 Received: from pps.filterd (m0098396.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id vB6EiWQN004102 for ; Wed, 6 Dec 2017 09:44:50 -0500 Received: from e06smtp13.uk.ibm.com (e06smtp13.uk.ibm.com [195.75.94.109]) by mx0a-001b2d01.pphosted.com with ESMTP id 2ephp6v1vq-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Wed, 06 Dec 2017 09:44:49 -0500 Received: from localhost by e06smtp13.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Wed, 6 Dec 2017 14:44:44 -0000 Received: from d06av22.portsmouth.uk.ibm.com (d06av22.portsmouth.uk.ibm.com [9.149.105.58]) by b06cxnps3075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id vB6Eihbc57802824; Wed, 6 Dec 2017 14:44:43 GMT Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 68E654C046; Wed, 6 Dec 2017 14:39:34 +0000 (GMT) Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 266464C044; Wed, 6 Dec 2017 14:39:34 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by d06av22.portsmouth.uk.ibm.com (Postfix) with ESMTPS; Wed, 6 Dec 2017 14:39:34 +0000 (GMT) From: Halil Pasic To: Cornelia Huck Date: Wed, 6 Dec 2017 15:44:38 +0100 X-Mailer: git-send-email 2.13.5 In-Reply-To: <20171206144438.28908-1-pasic@linux.vnet.ibm.com> References: <20171206144438.28908-1-pasic@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 17120614-0012-0000-0000-00000595F748 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17120614-0013-0000-0000-00001910F914 Message-Id: <20171206144438.28908-3-pasic@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-12-06_06:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1709140000 definitions=main-1712060216 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.156.1 Subject: [Qemu-devel] [PATCH v2 2/2] s390x: deprecate s390-squash-mcss machine prop X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Shalini Chellathurai Saroja , Halil Pasic , Thomas Huth , qemu-devel@nongnu.org, qemu-s390x@nongnu.org, Dong Jia Shi Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" With the cssids unrestricted (commit "s390x/css: unrestrict cssids") the s390-squash-mcss machine property should not be used. Actually Libvirt never supported this, so the expectation is that removing it should be pretty painless. But let's play nice and deprecate it first. Signed-off-by: Halil Pasic --- v1 -> v2: * Moved warning to machine initialization, and made it warn if the command line option is specified * Dropped the r-b of Dong Jia because of the change above * Dropped machine name from the doc --- hw/s390x/s390-virtio-ccw.c | 7 ++++++- qemu-doc.texi | 8 ++++++++ qemu-options.hx | 8 +++++++- 3 files changed, 21 insertions(+), 2 deletions(-) diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c index 4d65a50334..91e12f3af9 100644 --- a/hw/s390x/s390-virtio-ccw.c +++ b/hw/s390x/s390-virtio-ccw.c @@ -308,6 +308,11 @@ static void ccw_init(MachineState *machine) } else { ret = css_create_css_image(VIRTUAL_CSSID, true); } + if (qemu_opt_get(qemu_get_machine_opts(), "s390-squash-mcss")) { + warn_report("The machine property 's390-squash-mcss' is deprecated" + " (obsoleted by lifting the cssid restrictions)."); + } + assert(ret == 0); if (css_migration_enabled()) { css_register_vmstate(); @@ -582,7 +587,7 @@ static inline void s390_machine_initfn(Object *obj) object_property_add_bool(obj, "s390-squash-mcss", machine_get_squash_mcss, machine_set_squash_mcss, NULL); - object_property_set_description(obj, "s390-squash-mcss", + object_property_set_description(obj, "s390-squash-mcss", "(deprecated) " "enable/disable squashing subchannels into the default css", NULL); object_property_set_bool(obj, false, "s390-squash-mcss", NULL); diff --git a/qemu-doc.texi b/qemu-doc.texi index db2351c746..60d35f996a 100644 --- a/qemu-doc.texi +++ b/qemu-doc.texi @@ -2501,6 +2501,14 @@ enabled via the ``-machine usb=on'' argument. The ``-nodefconfig`` argument is a synonym for ``-no-user-config``. +@subsection -machine s390-squash-mcss=on|off (since 2.12.0) + +The ``s390-squash-mcss=on`` property has been obsoleted by allowing the +cssid to be chosen freely. Instead of squashing subchannels into the +default channel subsystem image for guests that do not support multiple +channel subsystems, all devices can be put into the default channel +subsystem image. + @section qemu-img command line arguments @subsection convert -s (since 2.0.0) diff --git a/qemu-options.hx b/qemu-options.hx index f11c4ac960..fe0c29271f 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -43,7 +43,7 @@ DEF("machine", HAS_ARG, QEMU_OPTION_machine, \ " suppress-vmdesc=on|off disables self-describing migration (default=off)\n" " nvdimm=on|off controls NVDIMM support (default=off)\n" " enforce-config-section=on|off enforce configuration section migration (default=off)\n" - " s390-squash-mcss=on|off controls support for squashing into default css (default=off)\n", + " s390-squash-mcss=on|off (deprecated) controls support for squashing into default css (default=off)\n", QEMU_ARCH_ALL) STEXI @item -machine [type=]@var{name}[,prop=@var{value}[,...]] @@ -98,6 +98,12 @@ Enables or disables NVDIMM support. The default is off. @item s390-squash-mcss=on|off Enables or disables squashing subchannels into the default css. The default is off. +NOTE: This property is deprecated and will be removed in future releases. +The ``s390-squash-mcss=on`` property has been obsoleted by allowing the +cssid to be chosen freely. Instead of squashing subchannels into the +default channel subsystem image for guests that do not support multiple +channel subsystems, all devices can be put into the default channel +subsystem image. @item enforce-config-section=on|off If @option{enforce-config-section} is set to @var{on}, force migration code to send configuration section even if the machine-type sets the