{"id":808526,"url":"http://patchwork.ozlabs.org/api/1.0/patches/808526/?format=json","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/1.0/projects/14/?format=json","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":""},"msgid":"<1504239778-29893-4-git-send-email-zyimin@linux.vnet.ibm.com>","date":"2017-09-01T04:22:58","name":"[v2,3/3] s390x/pci: add iommu replay callback","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"339b2e9c696f0c9e6522e324ed7961a4b10b64a7","submitter":{"id":66807,"url":"http://patchwork.ozlabs.org/api/1.0/people/66807/?format=json","name":"Yi Min Zhao","email":"zyimin@linux.vnet.ibm.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/1504239778-29893-4-git-send-email-zyimin@linux.vnet.ibm.com/mbox/","series":[{"id":947,"url":"http://patchwork.ozlabs.org/api/1.0/series/947/?format=json","date":"2017-09-01T04:22:55","name":"three zpci patches","version":2,"mbox":"http://patchwork.ozlabs.org/series/947/mbox/"}],"check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/808526/checks/","tags":{},"headers":{"Return-Path":"","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=)","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 3xk5mZ4hYTz9s0g\n\tfor ;\n\tFri, 1 Sep 2017 14:26:54 +1000 (AEST)","from localhost ([::1]:45183 helo=lists.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.71) (envelope-from\n\t)\n\tid 1dndXg-0006MK-Pj\n\tfor incoming@patchwork.ozlabs.org; Fri, 01 Sep 2017 00:26:52 -0400","from eggs.gnu.org ([2001:4830:134:3::10]:34989)\n\tby lists.gnu.org with esmtp (Exim 4.71)\n\t(envelope-from ) id 1dndVb-0004lu-17\n\tfor qemu-devel@nongnu.org; Fri, 01 Sep 2017 00:24:47 -0400","from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)\n\t(envelope-from ) id 1dndVX-0002DU-3X\n\tfor qemu-devel@nongnu.org; Fri, 01 Sep 2017 00:24:43 -0400","from mx0a-001b2d01.pphosted.com ([148.163.156.1]:50798)\n\tby eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32)\n\t(Exim 4.71) (envelope-from )\n\tid 1dndVW-0002Co-Qv\n\tfor qemu-devel@nongnu.org; Fri, 01 Sep 2017 00:24:39 -0400","from pps.filterd (m0098396.ppops.net [127.0.0.1])\n\tby mx0a-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id\n\tv814OFEK088529\n\tfor ; Fri, 1 Sep 2017 00:24:37 -0400","from e23smtp06.au.ibm.com (e23smtp06.au.ibm.com [202.81.31.148])\n\tby mx0a-001b2d01.pphosted.com with ESMTP id 2cpram94wq-1\n\t(version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT)\n\tfor ; Fri, 01 Sep 2017 00:24:37 -0400","from localhost\n\tby e23smtp06.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use\n\tOnly! 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Violators will be prosecuted; \n\tFri, 1 Sep 2017 14:24:32 +1000","from d23av06.au.ibm.com (d23av06.au.ibm.com [9.190.235.151])\n\tby d23relay07.au.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id\n\tv814NH7P33161254\n\tfor ; Fri, 1 Sep 2017 14:23:17 +1000","from d23av06.au.ibm.com (localhost [127.0.0.1])\n\tby d23av06.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id\n\tv814NGew001382\n\tfor ; Fri, 1 Sep 2017 14:23:17 +1000","from r35lp25.boeblingen.de.ibm.com (r35lp25.boeblingen.de.ibm.com\n\t[9.152.111.25])\n\tby d23av06.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id\n\tv814N2UE001078; Fri, 1 Sep 2017 14:23:13 +1000"],"From":"Yi Min Zhao ","To":"qemu-devel@nongnu.org","Date":"Fri, 1 Sep 2017 06:22:58 +0200","X-Mailer":"git-send-email 2.3.0","In-Reply-To":"<1504239778-29893-1-git-send-email-zyimin@linux.vnet.ibm.com>","References":"<1504239778-29893-1-git-send-email-zyimin@linux.vnet.ibm.com>","X-TM-AS-MML":"disable","x-cbid":"17090104-0040-0000-0000-000003525894","X-IBM-AV-DETECTION":"SAVI=unused REMOTE=unused XFE=unused","x-cbparentid":"17090104-0041-0000-0000-00000CD0604B","Message-Id":"<1504239778-29893-4-git-send-email-zyimin@linux.vnet.ibm.com>","X-Proofpoint-Virus-Version":"vendor=fsecure engine=2.50.10432:, ,\n\tdefinitions=2017-08-31_09:, , 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-1709010064","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 3/3] s390x/pci: add iommu replay callback","X-BeenThere":"qemu-devel@nongnu.org","X-Mailman-Version":"2.1.21","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","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"},"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 \nReviewed-by: Halil Pasic \nSigned-off-by: Yi Min Zhao \n---\n hw/s390x/s390-pci-bus.c | 11 +++++++++++\n 1 file changed, 11 insertions(+)","diff":"diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c\nindex bd8a3e1e1c..69f45e3715 100644\n--- a/hw/s390x/s390-pci-bus.c\n+++ b/hw/s390x/s390-pci-bus.c\n@@ -397,6 +397,16 @@ 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+ /* It's impossible to plug a pci device on s390x that already has iommu\n+ * mappings which need to be replayed, that is due to the \"one iommu per\n+ * zpci device\" construct. So we don't need iommu replay currently.\n+ */\n+ return;\n+}\n+\n static S390PCIIOMMU *s390_pci_get_iommu(S390pciState *s, PCIBus *bus,\n int devfn)\n {\n@@ -1045,6 +1055,7 @@ 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":["v2","3/3"]}