{"id":815328,"url":"http://patchwork.ozlabs.org/api/patches/815328/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/1505807208-9063-15-git-send-email-eric.auger@redhat.com/","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/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":"","list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<1505807208-9063-15-git-send-email-eric.auger@redhat.com>","list_archive_url":null,"date":"2017-09-19T07:46:46","name":"[RFC,v4,14/16] hw/vfio/common: Set the IOMMUMemoryRegion supported page sizes","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"bce6d1639cb29b3231ad0a601dfbf36624f41f6f","submitter":{"id":69187,"url":"http://patchwork.ozlabs.org/api/people/69187/?format=json","name":"Eric Auger","email":"eric.auger@redhat.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/1505807208-9063-15-git-send-email-eric.auger@redhat.com/mbox/","series":[{"id":3796,"url":"http://patchwork.ozlabs.org/api/series/3796/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/list/?series=3796","date":"2017-09-19T07:46:32","name":"VIRTIO-IOMMU device","version":4,"mbox":"http://patchwork.ozlabs.org/series/3796/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/815328/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/815328/checks/","tags":{},"related":[],"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=)","ext-mx06.extmail.prod.ext.phx2.redhat.com;\n\tdmarc=none (p=none dis=none) header.from=redhat.com","ext-mx06.extmail.prod.ext.phx2.redhat.com;\n\tspf=fail smtp.mailfrom=eric.auger@redhat.com"],"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 3xxFbv1R27z9s7M\n\tfor ;\n\tTue, 19 Sep 2017 17:58:03 +1000 (AEST)","from localhost ([::1]:40641 helo=lists.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.71) (envelope-from\n\t)\n\tid 1duDPt-0007SZ-7Y\n\tfor incoming@patchwork.ozlabs.org; Tue, 19 Sep 2017 03:58:01 -0400","from eggs.gnu.org ([2001:4830:134:3::10]:48457)\n\tby lists.gnu.org with esmtp (Exim 4.71)\n\t(envelope-from ) id 1duDIZ-0001lv-69\n\tfor qemu-devel@nongnu.org; Tue, 19 Sep 2017 03:50:28 -0400","from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)\n\t(envelope-from ) id 1duDIY-0001yc-0y\n\tfor qemu-devel@nongnu.org; Tue, 19 Sep 2017 03:50:27 -0400","from mx1.redhat.com ([209.132.183.28]:55842)\n\tby eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32)\n\t(Exim 4.71) (envelope-from )\n\tid 1duDIM-0001qs-6r; Tue, 19 Sep 2017 03:50:14 -0400","from smtp.corp.redhat.com\n\t(int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11])\n\t(using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby mx1.redhat.com (Postfix) with ESMTPS id 2A53F356F6;\n\tTue, 19 Sep 2017 07:50:13 +0000 (UTC)","from localhost.localdomain.com (ovpn-116-197.ams2.redhat.com\n\t[10.36.116.197])\n\tby smtp.corp.redhat.com (Postfix) with ESMTP id E6E9261342;\n\tTue, 19 Sep 2017 07:49:59 +0000 (UTC)"],"DMARC-Filter":"OpenDMARC Filter v1.3.2 mx1.redhat.com 2A53F356F6","From":"Eric Auger ","To":"eric.auger.pro@gmail.com, eric.auger@redhat.com, peter.maydell@linaro.org,\n\talex.williamson@redhat.com, mst@redhat.com, qemu-arm@nongnu.org,\n\tqemu-devel@nongnu.org, jean-philippe.brucker@arm.com","Date":"Tue, 19 Sep 2017 09:46:46 +0200","Message-Id":"<1505807208-9063-15-git-send-email-eric.auger@redhat.com>","In-Reply-To":"<1505807208-9063-1-git-send-email-eric.auger@redhat.com>","References":"<1505807208-9063-1-git-send-email-eric.auger@redhat.com>","X-Scanned-By":"MIMEDefang 2.79 on 10.5.11.11","X-Greylist":"Sender IP whitelisted, not delayed by milter-greylist-4.5.16\n\t(mx1.redhat.com [10.5.110.30]);\n\tTue, 19 Sep 2017 07:50:13 +0000 (UTC)","X-detected-operating-system":"by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic]\n\t[fuzzy]","X-Received-From":"209.132.183.28","Subject":"[Qemu-devel] [RFC v4 14/16] hw/vfio/common: Set the\n\tIOMMUMemoryRegion supported page sizes","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":"wei@redhat.com, kevin.tian@intel.com, marc.zyngier@arm.com,\n\ttn@semihalf.com, \n\twill.deacon@arm.com, drjones@redhat.com, peterx@redhat.com,\n\tlinuc.decode@gmail.com, bharat.bhushan@nxp.com,\n\tchristoffer.dall@linaro.org","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"\"Qemu-devel\"\n\t"},"content":"We store the page_size_mask in the container and on\nvfio_listener_region_add(), the information is conveyed\nto the IOMMUMemoryRegion.\n\nSigned-off-by: Eric Auger \n---\n hw/vfio/common.c | 5 +++++\n include/hw/vfio/vfio-common.h | 1 +\n 2 files changed, 6 insertions(+)","diff":"diff --git a/hw/vfio/common.c b/hw/vfio/common.c\nindex 7b2924c..468a259 100644\n--- a/hw/vfio/common.c\n+++ b/hw/vfio/common.c\n@@ -480,6 +480,7 @@ static void vfio_listener_region_add(MemoryListener *listener,\n if (memory_region_is_iommu(section->mr)) {\n VFIOGuestIOMMU *giommu;\n IOMMUMemoryRegion *iommu_mr = IOMMU_MEMORY_REGION(section->mr);\n+ IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_GET_CLASS(iommu_mr);\n \n trace_vfio_listener_region_add_iommu(iova, end);\n /*\n@@ -500,6 +501,9 @@ static void vfio_listener_region_add(MemoryListener *listener,\n IOMMU_NOTIFIER_ALL,\n section->offset_within_region,\n int128_get64(llend));\n+ if (imrc->set_page_size_mask) {\n+ imrc->set_page_size_mask(iommu_mr, container->page_size_mask);\n+ }\n QLIST_INSERT_HEAD(&container->giommu_list, giommu, giommu_next);\n \n memory_region_register_iommu_notifier(section->mr, &giommu->n);\n@@ -1024,6 +1028,7 @@ static int vfio_connect_container(VFIOGroup *group, AddressSpace *as,\n /* Assume 4k IOVA page size */\n info.iova_pgsizes = 4096;\n }\n+ container->page_size_mask = info.iova_pgsizes;\n vfio_host_win_add(container, 0, (hwaddr)-1, info.iova_pgsizes);\n } else if (ioctl(fd, VFIO_CHECK_EXTENSION, VFIO_SPAPR_TCE_IOMMU) ||\n ioctl(fd, VFIO_CHECK_EXTENSION, VFIO_SPAPR_TCE_v2_IOMMU)) {\ndiff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h\nindex f3a2ac9..221cc30 100644\n--- a/include/hw/vfio/vfio-common.h\n+++ b/include/hw/vfio/vfio-common.h\n@@ -79,6 +79,7 @@ typedef struct VFIOContainer {\n int fd; /* /dev/vfio/vfio, empowered by the attached groups */\n MemoryListener listener;\n MemoryListener prereg_listener;\n+ uint64_t page_size_mask; /* page sizes supported for this container */\n unsigned iommu_type;\n int error;\n bool initialized;\n","prefixes":["RFC","v4","14/16"]}