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GET /api/patches/806432/?format=api
{ "id": 806432, "url": "http://patchwork.ozlabs.org/api/patches/806432/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/1503907487-2764-5-git-send-email-zyimin@linux.vnet.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": "<1503907487-2764-5-git-send-email-zyimin@linux.vnet.ibm.com>", "list_archive_url": null, "date": "2017-08-28T08:04:47", "name": "[4/4] s390x/pci: add iommu replay callback", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "20374a1b32e9e5b4e5e1dc10bb2b6ef4d07dcaa8", "submitter": { "id": 66807, "url": "http://patchwork.ozlabs.org/api/people/66807/?format=api", "name": "Yi Min Zhao", "email": "zyimin@linux.vnet.ibm.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/1503907487-2764-5-git-send-email-zyimin@linux.vnet.ibm.com/mbox/", "series": [ { "id": 98, "url": "http://patchwork.ozlabs.org/api/series/98/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=98", "date": "2017-08-28T08:04:43", "name": "four zpci patches", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/98/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/806432/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/806432/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@bilbo.ozlabs.org", "Authentication-Results": "ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=nongnu.org\n\t(client-ip=2001:4830:134:3::11; helo=lists.gnu.org;\n\tenvelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n\treceiver=<UNKNOWN>)", "Received": [ "from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11])\n\t(using TLSv1 with cipher AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xgkt01q1rz9sPk\n\tfor <incoming@patchwork.ozlabs.org>;\n\tMon, 28 Aug 2017 18:08:24 +1000 (AEST)", "from localhost ([::1]:37407 helo=lists.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.71) (envelope-from\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>)\n\tid 1dmF5q-0001XC-4V\n\tfor incoming@patchwork.ozlabs.org; Mon, 28 Aug 2017 04:08:22 -0400", "from eggs.gnu.org ([2001:4830:134:3::10]:55445)\n\tby lists.gnu.org with esmtp (Exim 4.71)\n\t(envelope-from <zyimin@linux.vnet.ibm.com>) id 1dmF2r-00085y-7M\n\tfor qemu-devel@nongnu.org; Mon, 28 Aug 2017 04:05:18 -0400", "from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)\n\t(envelope-from <zyimin@linux.vnet.ibm.com>) id 1dmF2p-0006D4-TW\n\tfor qemu-devel@nongnu.org; Mon, 28 Aug 2017 04:05:17 -0400", "from mx0b-001b2d01.pphosted.com ([148.163.158.5]:34217\n\thelo=mx0a-001b2d01.pphosted.com)\n\tby eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32)\n\t(Exim 4.71) (envelope-from <zyimin@linux.vnet.ibm.com>)\n\tid 1dmF2p-0006Cd-Ni\n\tfor qemu-devel@nongnu.org; Mon, 28 Aug 2017 04:05:15 -0400", "from pps.filterd (m0098420.ppops.net [127.0.0.1])\n\tby mx0b-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id\n\tv7S83jhY060222\n\tfor <qemu-devel@nongnu.org>; Mon, 28 Aug 2017 04:05:15 -0400", "from e23smtp02.au.ibm.com (e23smtp02.au.ibm.com [202.81.31.144])\n\tby mx0b-001b2d01.pphosted.com with ESMTP id 2cm9ubcwsx-1\n\t(version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT)\n\tfor <qemu-devel@nongnu.org>; Mon, 28 Aug 2017 04:05:14 -0400", "from localhost\n\tby e23smtp02.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use\n\tOnly! Violators will be prosecuted\n\tfor <qemu-devel@nongnu.org> from <zyimin@linux.vnet.ibm.com>;\n\tMon, 28 Aug 2017 18:05:12 +1000", "from d23relay09.au.ibm.com (202.81.31.228)\n\tby e23smtp02.au.ibm.com (202.81.31.208) with IBM ESMTP SMTP Gateway:\n\tAuthorized Use Only! Violators will be prosecuted; \n\tMon, 28 Aug 2017 18:05:09 +1000", "from d23av02.au.ibm.com (d23av02.au.ibm.com [9.190.235.138])\n\tby d23relay09.au.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id\n\tv7S858ON38404344\n\tfor <qemu-devel@nongnu.org>; Mon, 28 Aug 2017 18:05:08 +1000", "from d23av02.au.ibm.com (localhost [127.0.0.1])\n\tby d23av02.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id\n\tv7S84x5O026105\n\tfor <qemu-devel@nongnu.org>; Mon, 28 Aug 2017 18:04:59 +1000", "from r35lp25.boeblingen.de.ibm.com (r35lp25.boeblingen.de.ibm.com\n\t[9.152.111.25])\n\tby d23av02.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id\n\tv7S84gjJ025538; Mon, 28 Aug 2017 18:04:56 +1000" ], "From": "Yi Min Zhao <zyimin@linux.vnet.ibm.com>", "To": "qemu-devel@nongnu.org", "Date": "Mon, 28 Aug 2017 10:04:47 +0200", "X-Mailer": "git-send-email 2.3.0", "In-Reply-To": "<1503907487-2764-1-git-send-email-zyimin@linux.vnet.ibm.com>", "References": "<1503907487-2764-1-git-send-email-zyimin@linux.vnet.ibm.com>", "X-TM-AS-MML": "disable", "x-cbid": "17082808-0004-0000-0000-0000022B8C1C", "X-IBM-AV-DETECTION": "SAVI=unused REMOTE=unused XFE=unused", "x-cbparentid": "17082808-0005-0000-0000-00005E128931", "Message-Id": "<1503907487-2764-5-git-send-email-zyimin@linux.vnet.ibm.com>", "X-Proofpoint-Virus-Version": "vendor=fsecure engine=2.50.10432:, ,\n\tdefinitions=2017-08-28_04:, , signatures=0", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n\tspamscore=0 suspectscore=1\n\tmalwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam\n\tadjust=0 reason=mlx scancount=1 engine=8.0.1-1707230000\n\tdefinitions=main-1708280128", "X-detected-operating-system": "by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy]", "X-Received-From": "148.163.158.5", "Subject": "[Qemu-devel] [PATCH 4/4] s390x/pci: add iommu replay callback", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.21", "Precedence": "list", "List-Id": "<qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<http://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\t<mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Cc": "pasic@linux.vnet.ibm.com, zyimin@linux.vnet.ibm.com,\n\trichard.henderson@linaro.org, cohuck@redhat.com,\n\tpmorel@linux.vnet.ibm.com, agraf@suse.de, borntraeger@de.ibm.com", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "\"Qemu-devel\"\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>" }, "content": "Let's introduce iommu replay callback for s390 pci iommu memory region.\nCurrently we don't need any dma mapping replay. So let it return\ndirectly. This implementation will avoid meaningless loops calling\ntranslation callback.\n\nReviewed-by: Pierre Morel <pmorel@linux.vnet.ibm.com>\nReviewed-by: Halil Pasic <pasic@linux.vnet.ibm.com>\nSigned-off-by: Yi Min Zhao <zyimin@linux.vnet.ibm.com>\n---\n hw/s390x/s390-pci-bus.c | 8 ++++++++\n 1 file changed, 8 insertions(+)", "diff": "diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c\nindex 9e1f7ff5c5..359509ccea 100644\n--- a/hw/s390x/s390-pci-bus.c\n+++ b/hw/s390x/s390-pci-bus.c\n@@ -407,6 +407,13 @@ static IOMMUTLBEntry s390_translate_iommu(IOMMUMemoryRegion *mr, hwaddr addr,\n return ret;\n }\n \n+static void s390_pci_iommu_replay(IOMMUMemoryRegion *iommu,\n+ IOMMUNotifier *notifier)\n+{\n+ /* we don't need iommu replay currently */\n+ return;\n+}\n+\n static S390PCIIOMMU *s390_pci_get_iommu(S390pciState *s, PCIBus *bus,\n int devfn)\n {\n@@ -1055,6 +1062,7 @@ static void s390_iommu_memory_region_class_init(ObjectClass *klass, void *data)\n IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_CLASS(klass);\n \n imrc->translate = s390_translate_iommu;\n+ imrc->replay = s390_pci_iommu_replay;\n }\n \n static const TypeInfo s390_iommu_memory_region_info = {\n", "prefixes": [ "4/4" ] }