Cover Letter Detail
Show a cover letter.
GET /api/covers/2218898/?format=api
{ "id": 2218898, "url": "http://patchwork.ozlabs.org/api/covers/2218898/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/cover/20260402022921.298818-1-kshk@linux.ibm.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260402022921.298818-1-kshk@linux.ibm.com>", "list_archive_url": null, "date": "2026-04-02T02:29:06", "name": "[00/15] s390x/pci: Implement migration for emulated devices", "submitter": { "id": 90249, "url": "http://patchwork.ozlabs.org/api/people/90249/?format=api", "name": "Konstantin Shkolnyy", "email": "kshk@linux.ibm.com" }, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/cover/20260402022921.298818-1-kshk@linux.ibm.com/mbox/", "series": [ { "id": 498419, "url": "http://patchwork.ozlabs.org/api/series/498419/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=498419", "date": "2026-04-02T02:29:08", "name": "s390x/pci: Implement migration for emulated devices", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/498419/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2218898/comments/", "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256\n header.s=pp1 header.b=nsiUQZE4;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; helo=lists.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)" ], "Received": [ "from lists.gnu.org (lists.gnu.org [209.51.188.17])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fmQp05t1pz1yGH\n\tfor <incoming@patchwork.ozlabs.org>; Thu, 02 Apr 2026 13:31:04 +1100 (AEDT)", "from localhost ([::1] helo=lists1p.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from <qemu-devel-bounces@nongnu.org>)\n\tid 1w87ou-0004Du-1d; Wed, 01 Apr 2026 22:30:10 -0400", "from eggs.gnu.org ([2001:470:142:3::10])\n by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <kshk@linux.ibm.com>)\n id 1w87on-0004CP-FC; Wed, 01 Apr 2026 22:30:02 -0400", "from mx0b-001b2d01.pphosted.com ([148.163.158.5])\n by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <kshk@linux.ibm.com>)\n id 1w87ol-0001kI-Lg; Wed, 01 Apr 2026 22:30:01 -0400", "from pps.filterd (m0360072.ppops.net [127.0.0.1])\n by mx0a-001b2d01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id\n 631IVC5J3747399; Thu, 2 Apr 2026 02:29:54 GMT", "from ppma23.wdc07v.mail.ibm.com\n (5d.69.3da9.ip4.static.sl-reverse.com [169.61.105.93])\n by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4d66msa3tg-1\n (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT);\n Thu, 02 Apr 2026 02:29:54 +0000 (GMT)", "from pps.filterd (ppma23.wdc07v.mail.ibm.com [127.0.0.1])\n by ppma23.wdc07v.mail.ibm.com (8.18.1.2/8.18.1.2) with ESMTP id\n 63217hbv013897;\n Thu, 2 Apr 2026 02:29:53 GMT", "from smtprelay07.dal12v.mail.ibm.com ([172.16.1.9])\n by ppma23.wdc07v.mail.ibm.com (PPS) with ESMTPS id 4d6ttkr8e7-1\n (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT);\n Thu, 02 Apr 2026 02:29:53 +0000", "from smtpav06.wdc07v.mail.ibm.com (smtpav06.wdc07v.mail.ibm.com\n [10.39.53.233])\n by smtprelay07.dal12v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id\n 6322Tp6c47055210\n (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK);\n Thu, 2 Apr 2026 02:29:52 GMT", "from smtpav06.wdc07v.mail.ibm.com (unknown [127.0.0.1])\n by IMSVA (Postfix) with ESMTP id CBDB6580F5;\n Thu, 2 Apr 2026 02:29:51 +0000 (GMT)", "from smtpav06.wdc07v.mail.ibm.com (unknown [127.0.0.1])\n by IMSVA (Postfix) with ESMTP id 41DDC580F0;\n Thu, 2 Apr 2026 02:29:51 +0000 (GMT)", "from WIN-DU0DFC9G5VV.ibm.com (unknown [9.61.247.119])\n by smtpav06.wdc07v.mail.ibm.com (Postfix) with ESMTP;\n Thu, 2 Apr 2026 02:29:51 +0000 (GMT)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc\n :content-transfer-encoding:date:from:message-id:mime-version\n :subject:to; s=pp1; bh=UMzr9l0dhVa1uSLCFbhhL/zli0wnoqko+w5Wuz3Zx\n 28=; b=nsiUQZE4h+R5Ocw0Q53sO5fBEv5L4WcnLDKkQNzqQgqghFsfqLJuudgAR\n u7RxHqKFDgnF0b+LXsUjtaJRcoL61hLhpqdamxLe06dyZPbSvexbe8ucVDW3XURP\n gZ27TYhBupeJKkSDbbpz85DNM8jFzsLyjMEbR3jsPLJNbxQB7tsfT8qGRjHCrQz1\n 8ih6bFphwtWsRnY7HzM7vTe0XBs8+u1Rd2ifAJ57y2EiwguGMwWqdkGXiOngvYAj\n n8wy5wkfSfMAoeTP92vQ+mKQrfzooItW82HxX46HpgDyJ1076g+K/PxzIqr8DF0n\n UM2cgIfS2HBdbEEsiWZqQVnoIqJqg==", "From": "Konstantin Shkolnyy <kshk@linux.ibm.com>", "To": "mjrosato@linux.ibm.com", "Cc": "alifm@linux.ibm.com, richard.henderson@linaro.org, iii@linux.ibm.com,\n david@kernel.org, cohuck@redhat.com, pasic@linux.ibm.com,\n borntraeger@linux.ibm.com, qemu-s390x@nongnu.org,\n qemu-devel@nongnu.org, Konstantin Shkolnyy <kshk@linux.ibm.com>", "Subject": "[PATCH 00/15] s390x/pci: Implement migration for emulated devices", "Date": "Wed, 1 Apr 2026 21:29:06 -0500", "Message-Id": "<20260402022921.298818-1-kshk@linux.ibm.com>", "X-Mailer": "git-send-email 2.34.1", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-TM-AS-GCONF": "00", "X-Authority-Analysis": "v=2.4 cv=J6enLQnS c=1 sm=1 tr=0 ts=69cdd4a2 cx=c_pps\n a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17\n a=A5OVakUREuEA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22\n a=RzCfie-kr_QcCd8fBx8p:22 a=RpK13mFz0vxO_-ZgjpYA:9", "X-Proofpoint-Spam-Details-Enc": "AW1haW4tMjYwNDAyMDAxOSBTYWx0ZWRfX7kmKuksNvB5F\n pjqm58pEunVGP5itoTfrKmMkg5e+fbe20KJEmIrnudgrENenB2kLS5wiZw8rqtzdP5cM66er0uP\n 0YgW1B+MDIUQpuQV0g8oTjrKDhb2yRY3a2lEQfT7zfi1kD0+vpjBQXtJrHcOCa2+cDiPI0yYHBv\n MW4ZsGiBvyhqMxTvPOySrUDd9o7d2Hs2mEL9U9Qse9eWhk5AwIZYTJ89Utwgiyh2Q2TvxlAouxZ\n VksdUzFvAE0hTkN5nW0TfaDKzxwYWoJZ5CzKcr/oZ1odfl3o9YCePJd7rUU5S0uiSVkMOkmUeuH\n Npuh79lL1teyHIVJFc+N+UIN7oHR7SCcMPg0EC7unLT5LyN05L8WvRHleR2fnJM47F1cry0f+k5\n swGj0dOouSC3HCfNKJQjbsW3/lAzs3CXzFQ1bHCVZjvMGQaizP9Jvis3rOtgGtjyiJVW50Uifxn\n RXLwKJj7UBawIdnC+7Q==", "X-Proofpoint-GUID": "_kWD8aaYwp1UL-aag0VG_l6FebZyIZQw", "X-Proofpoint-ORIG-GUID": "_kWD8aaYwp1UL-aag0VG_l6FebZyIZQw", "X-Proofpoint-Virus-Version": "vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-04-01_05,2026-04-01_02,2025-10-01_01", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n suspectscore=0 clxscore=1011 adultscore=0 priorityscore=1501 bulkscore=0\n phishscore=0 malwarescore=0 lowpriorityscore=0 spamscore=0 impostorscore=0\n classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0\n reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2604020019", "Received-SPF": "pass client-ip=148.163.158.5; envelope-from=kshk@linux.ibm.com;\n helo=mx0b-001b2d01.pphosted.com", "X-Spam_score_int": "-6", "X-Spam_score": "-0.7", "X-Spam_bar": "/", "X-Spam_report": "(-0.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7,\n RCVD_IN_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01,\n RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=1, RCVD_IN_VALIDITY_RPBL_BLOCKED=1,\n SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no", "X-Spam_action": "no action", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "Up until now QEMU marked any zPCI device as \"unmigratable.\"\n\nThis patch series adds support for migrating emulated devices, which are\nsimpler to migrate. It leaves VFIO devices still unmigratable.\n\nTo enable migration, the device state needs to be saved/restored to/from\nthe migration stream.\n\nThere are 2 kinds of emulated devices - those that use the zPCI IOMMU page\ntable emulation in QEMU (e.g., Intel IGB NIC), and those that don't (virtio).\nThis is important to note for testing purposes.\n\nThis change was tested on IGB, virtio-net and virtio-blk devices by running\nI/O on them while performing \"virsh managedsave, virsh start\".\n\nKonstantin Shkolnyy (14):\n s390x/pci: Create function to contain translation status check\n s390x/pci: Move iommu_mr from S390PCIIOMMU to S390PCIBusDevice\n s390x/pci: Move dm_mr from S390PCIIOMMU to S390PCIBusDevice\n s390x/pci: Move iotlb from S390PCIIOMMU to S390PCIBusDevice\n s390x/pci: Remove a ptr to S390PCIBusDevice from S390PCIIOMMU\n s390x/pci: Move/rename enabled from S390PCIIOMMU to S390PCIBusDevice\n s390x/pci: Move dma_limit from S390PCIIOMMU to S390PCIBusDevice\n s390x/pci: Move g_iota from S390PCIIOMMU to S390PCIBusDevice\n s390x/pci: Move pba from S390PCIIOMMU to S390PCIBusDevice\n s390x/pci: Move pal from S390PCIIOMMU to S390PCIBusDevice\n s390x/pci: Move max_dma_limit from S390PCIIOMMU to S390PCIBusDevice\n s390x/pci: Add a comment explaining S390PCIIOMMU purpose\n s390x/pci: Implement migration for emulated devices\n s390x/pci: Create function to contain fmb_timer start\n\nMatthew Rosato (1):\n s390x/pci: implement IOMMU replay\n\n hw/s390x/s390-pci-bus.c | 251 ++++++++++++++++++++++++-------\n hw/s390x/s390-pci-inst.c | 116 +++++++-------\n hw/s390x/s390-pci-vfio.c | 4 +-\n include/hw/s390x/s390-pci-bus.h | 37 +++--\n include/hw/s390x/s390-pci-inst.h | 3 +-\n 5 files changed, 286 insertions(+), 125 deletions(-)" }