Patch Detail
get:
Show a patch.
patch:
Update a patch.
put:
Update a patch.
GET /api/patches/2218902/?format=api
{ "id": 2218902, "url": "http://patchwork.ozlabs.org/api/patches/2218902/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260402022921.298818-13-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": "<20260402022921.298818-13-kshk@linux.ibm.com>", "list_archive_url": null, "date": "2026-04-02T02:29:18", "name": "[12/15] s390x/pci: Move max_dma_limit from S390PCIIOMMU to S390PCIBusDevice", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "e5b08ffd1312456ba19e0a6027118d3d893cc0e0", "submitter": { "id": 90249, "url": "http://patchwork.ozlabs.org/api/people/90249/?format=api", "name": "Konstantin Shkolnyy", "email": "kshk@linux.ibm.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260402022921.298818-13-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/patches/2218902/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2218902/checks/", "tags": {}, "related": [], "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=PstZVNuA;\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 4fmQpq63ylz1yGH\n\tfor <incoming@patchwork.ozlabs.org>; Thu, 02 Apr 2026 13:31:47 +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 1w87pT-0004im-6L; Wed, 01 Apr 2026 22:30:43 -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 1w87ot-0004EM-On; Wed, 01 Apr 2026 22:30:08 -0400", "from mx0a-001b2d01.pphosted.com ([148.163.156.1])\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 1w87or-0001uA-Lz; Wed, 01 Apr 2026 22:30:07 -0400", "from pps.filterd (m0353729.ppops.net [127.0.0.1])\n by mx0a-001b2d01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id\n 631NdFu5224105; Thu, 2 Apr 2026 02:30:01 GMT", "from ppma11.dal12v.mail.ibm.com\n (db.9e.1632.ip4.static.sl-reverse.com [50.22.158.219])\n by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4d66nntyep-1\n (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT);\n Thu, 02 Apr 2026 02:30:01 +0000 (GMT)", "from pps.filterd (ppma11.dal12v.mail.ibm.com [127.0.0.1])\n by ppma11.dal12v.mail.ibm.com (8.18.1.2/8.18.1.2) with ESMTP id\n 6321hhKB008751;\n Thu, 2 Apr 2026 02:30:00 GMT", "from smtprelay02.dal12v.mail.ibm.com ([172.16.1.4])\n by ppma11.dal12v.mail.ibm.com (PPS) with ESMTPS id 4d6v11r447-1\n (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT);\n Thu, 02 Apr 2026 02:30:00 +0000", "from smtpav06.wdc07v.mail.ibm.com (smtpav06.wdc07v.mail.ibm.com\n [10.39.53.233])\n by smtprelay02.dal12v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id\n 6322Txj98323796\n (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK);\n Thu, 2 Apr 2026 02:29:59 GMT", "from smtpav06.wdc07v.mail.ibm.com (unknown [127.0.0.1])\n by IMSVA (Postfix) with ESMTP id 7446F580F4;\n Thu, 2 Apr 2026 02:29:59 +0000 (GMT)", "from smtpav06.wdc07v.mail.ibm.com (unknown [127.0.0.1])\n by IMSVA (Postfix) with ESMTP id E02B4580F6;\n Thu, 2 Apr 2026 02:29:58 +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 02:29:58 +0000 (GMT)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc\n :content-transfer-encoding:date:from:in-reply-to:message-id\n :mime-version:references:subject:to; s=pp1; bh=21wAnetksnyEMKaYw\n FAGBSun5+/pbul82YOTNXBd9SY=; b=PstZVNuAdpY4ClHhPvohh+90m4g/CytdJ\n HbhwRfstXe/Ap1pp2/8VUsGq0uKjluiOzQWwfL6lCEROf1BKzDewTFUhfFvGBixY\n 5IZmmow0HVZaDMnAqZ6XUMDI+OGI/OD/uHjQctChsGEbhsC53Eu7b3T7hjbmUPXk\n x6U7S95dHN17/9StzZd2kFMKxDwpDJ+JMYnElJunsT4Ey2zMYT55bwAJ9KBpR1Z4\n CKsXSoI4gyCmeB6IOdeNCpZ0MdwmRzvUBXC8v7ptIzAYxSHNKWrh4MZosBvFmHim\n sWL1oryY5FjANl1U4kYW+doA383ZGrgunWJHgEjX4EJec0frG6ZJw==", "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 12/15] s390x/pci: Move max_dma_limit from S390PCIIOMMU to\n S390PCIBusDevice", "Date": "Wed, 1 Apr 2026 21:29:18 -0500", "Message-Id": "<20260402022921.298818-13-kshk@linux.ibm.com>", "X-Mailer": "git-send-email 2.34.1", "In-Reply-To": "<20260402022921.298818-1-kshk@linux.ibm.com>", "References": "<20260402022921.298818-1-kshk@linux.ibm.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-TM-AS-GCONF": "00", "X-Proofpoint-GUID": "imYswDwFTqIYjpH5e6cDBLNaCyE5smYw", "X-Authority-Analysis": "v=2.4 cv=KslAGGWN c=1 sm=1 tr=0 ts=69cdd4a9 cx=c_pps\n a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17\n a=A5OVakUREuEA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22\n a=uAbxVGIbfxUO_5tXvNgY:22 a=VnNF1IyMAAAA:8 a=YlvBUofuDPas7G3Xl8cA:9", "X-Proofpoint-Spam-Details-Enc": "AW1haW4tMjYwNDAyMDAxOSBTYWx0ZWRfX7RkCHa6zYaYC\n pTLSQ1fdpFq5udb6a2Pz069nnxhWb0EsdExIy6My9+orwr7X2M5mi/Vfu0JCadIVe4fszfoX0Lj\n g55kHNzrxPZCqnJvg1k9MXICp1tH5rMYTuX8Lyzpi4wKopKBCNdUwAmCny91/0AngGn5gORcE5I\n OLZtI6aiOXaaSQAWmVCAtOM30zHfsBP37l5EowL+h8nR3RsQmvDyCwh7/len6uCEnLXoqo4P8Sr\n NJhALI6Y36H7hF3hyzsMFT1mTFum/cBqD7agCA+pvcBydYor2Cwhh8L+5jDeCZnxAZQKR79UpDh\n b4AI5Vodwx3MXwfFvOxgehr/bcyd+kvXRxjwHY72UHL0+xLqNPnQm32aPEv7adPHZU8lIxgEJcv\n EVjuKPr0qKMCYo1EoYyHg8odFHuz3II1pd+1OtJNlH2NGQQ645teQLPIUKSDesit+EmGX7R6uoQ\n VHTgXJSBONBj4vvyKXQ==", "X-Proofpoint-ORIG-GUID": "imYswDwFTqIYjpH5e6cDBLNaCyE5smYw", "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 malwarescore=0 lowpriorityscore=0 priorityscore=1501 suspectscore=0\n phishscore=0 adultscore=0 bulkscore=0 impostorscore=0 clxscore=1015\n spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound\n adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001\n definitions=main-2604020019", "Received-SPF": "pass client-ip=148.163.156.1; envelope-from=kshk@linux.ibm.com;\n helo=mx0a-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": "This field is only used when S390PCIBusDevice exists, so it can be moved\nthere to simplify S390PCIIOMMU which purpose is just to store the \"root\"\nAddressSpace.\n\nThis also allows to save/restore this field during migration.\n\nSigned-off-by: Konstantin Shkolnyy <kshk@linux.ibm.com>\n---\n hw/s390x/s390-pci-vfio.c | 4 ++--\n include/hw/s390x/s390-pci-bus.h | 2 +-\n 2 files changed, 3 insertions(+), 3 deletions(-)", "diff": "diff --git a/hw/s390x/s390-pci-vfio.c b/hw/s390x/s390-pci-vfio.c\nindex 7c754b656d..093743f2f0 100644\n--- a/hw/s390x/s390-pci-vfio.c\n+++ b/hw/s390x/s390-pci-vfio.c\n@@ -90,7 +90,7 @@ S390PCIDMACount *s390_pci_start_dma_count(S390pciState *s,\n cnt->users = 1;\n cnt->avail = avail;\n QTAILQ_INSERT_TAIL(&s->zpci_dma_limit, cnt, link);\n- pbdev->iommu->max_dma_limit = avail;\n+ pbdev->max_dma_limit = avail;\n return cnt;\n }\n \n@@ -151,7 +151,7 @@ static void s390_pci_read_base(S390PCIBusDevice *pbdev,\n * to request that the guest free DMA mappings as necessary.\n */\n if (!pbdev->rtr_avail) {\n- vfio_size = pbdev->iommu->max_dma_limit << qemu_target_page_bits();\n+ vfio_size = pbdev->max_dma_limit << qemu_target_page_bits();\n if (vfio_size > 0 && vfio_size < cap->end_dma - cap->start_dma + 1) {\n pbdev->zpci_fn.edma = cap->start_dma + vfio_size - 1;\n }\ndiff --git a/include/hw/s390x/s390-pci-bus.h b/include/hw/s390x/s390-pci-bus.h\nindex 1f5d8d4bd4..e3cbee2695 100644\n--- a/include/hw/s390x/s390-pci-bus.h\n+++ b/include/hw/s390x/s390-pci-bus.h\n@@ -275,7 +275,6 @@ struct S390PCIIOMMU {\n Object parent_obj;\n AddressSpace as;\n MemoryRegion mr;\n- uint64_t max_dma_limit;\n };\n \n typedef struct S390PCIIOMMUTable {\n@@ -352,6 +351,7 @@ struct S390PCIBusDevice {\n uint64_t g_iota;\n uint64_t pba;\n uint64_t pal;\n+ uint64_t max_dma_limit;\n S390PCIDMACount *dma_limit;\n MemoryRegion msix_notify_mr;\n IndAddr *summary_ind;\n", "prefixes": [ "12/15" ] }