From patchwork Mon Jun 3 06:10:11 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Duan, Zhenzhong" X-Patchwork-Id: 13683311 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7001AC41513 for ; Mon, 3 Jun 2024 06:15:55 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sE0x1-0004rJ-6Z; Mon, 03 Jun 2024 02:13:47 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sE0wy-0004q4-Mk for qemu-devel@nongnu.org; Mon, 03 Jun 2024 02:13:45 -0400 Received: from mgamail.intel.com ([192.198.163.10]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sE0wx-0000uQ-0H for qemu-devel@nongnu.org; Mon, 03 Jun 2024 02:13:44 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1717395223; x=1748931223; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=AknpX//QEXoR/eoy9ob0jTnGeHApPRu1pEWY3rPhxXg=; b=FJC7bVapkashx1kBtdnYPPUHeyIV3l/g+Ests/MlEvjnRYvBEawC+nQD TNrKzoyxIY9hEmaZ7OPg/Veo1QiFdpHb3vBpx0crnfajjWAooZv3SvA03 T2hn5dEVXISI+8MX87d/jMUk9o/VdpdgYafktSx9cMjPeEHCqE94ZDG/7 kEeFQcybgx+iwevZ7IqXw9nPKb4vTilpeHY+ebnUYaJL3GkQ/apL3re5U JNhDMQ57HUg7CYnNI+LQYWYOsemFwla+DNHurYjh426SAC0yzhKX6mdoQ DQPpBkgMHstor07a+13q4efK6spvMpj5mak4HktMs3Ler0nN5gutxPvnc g==; X-CSE-ConnectionGUID: DiHgjnhWQw+Wyn32Nm5UTA== X-CSE-MsgGUID: zRaktsT7Ty+4DrQgAw8zOQ== X-IronPort-AV: E=McAfee;i="6600,9927,11091"; a="25277667" X-IronPort-AV: E=Sophos;i="6.08,210,1712646000"; d="scan'208";a="25277667" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by fmvoesa104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Jun 2024 23:13:41 -0700 X-CSE-ConnectionGUID: 6hqObsIVTt6gRj+TAOnVAA== X-CSE-MsgGUID: j/6bUBTMRYOvsC4dm8fB3w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,210,1712646000"; d="scan'208";a="36855876" Received: from unknown (HELO SPR-S2600BT.bj.intel.com) ([10.240.192.127]) by orviesa009-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Jun 2024 23:13:37 -0700 From: Zhenzhong Duan To: qemu-devel@nongnu.org Cc: alex.williamson@redhat.com, clg@redhat.com, eric.auger@redhat.com, mst@redhat.com, peterx@redhat.com, jasowang@redhat.com, jgg@nvidia.com, nicolinc@nvidia.com, joao.m.martins@oracle.com, clement.mathieu--drif@eviden.com, kevin.tian@intel.com, yi.l.liu@intel.com, chao.p.peng@intel.com, Zhenzhong Duan Subject: [PATCH v6 07/19] vfio/container: Implement HostIOMMUDeviceClass::realize() handler Date: Mon, 3 Jun 2024 14:10:11 +0800 Message-Id: <20240603061023.269738-8-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240603061023.269738-1-zhenzhong.duan@intel.com> References: <20240603061023.269738-1-zhenzhong.duan@intel.com> MIME-Version: 1.0 Received-SPF: pass client-ip=192.198.163.10; envelope-from=zhenzhong.duan@intel.com; helo=mgamail.intel.com X-Spam_score_int: -45 X-Spam_score: -4.6 X-Spam_bar: ---- X-Spam_report: (-4.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.142, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Utilize range_get_last_bit() to get host IOMMU address width and package it in HostIOMMUDeviceCaps for query with .get_cap(). Signed-off-by: Zhenzhong Duan --- hw/vfio/container.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/hw/vfio/container.c b/hw/vfio/container.c index c4fca2dfca..48800fe92f 100644 --- a/hw/vfio/container.c +++ b/hw/vfio/container.c @@ -1136,6 +1136,31 @@ static void vfio_iommu_legacy_class_init(ObjectClass *klass, void *data) vioc->pci_hot_reset = vfio_legacy_pci_hot_reset; }; +static bool hiod_legacy_vfio_realize(HostIOMMUDevice *hiod, void *opaque, + Error **errp) +{ + VFIODevice *vdev = opaque; + /* iova_ranges is a sorted list */ + GList *l = g_list_last(vdev->bcontainer->iova_ranges); + + /* Only support query HOST_IOMMU_DEVICE_CAP_AW_BITS with legacy backend */ + if (l) { + Range *range = l->data; + hiod->caps.aw_bits = range_get_last_bit(range) + 1; + } else { + hiod->caps.aw_bits = 0xff; + } + + return true; +} + +static void hiod_legacy_vfio_class_init(ObjectClass *oc, void *data) +{ + HostIOMMUDeviceClass *hioc = HOST_IOMMU_DEVICE_CLASS(oc); + + hioc->realize = hiod_legacy_vfio_realize; +}; + static const TypeInfo types[] = { { .name = TYPE_VFIO_IOMMU_LEGACY, @@ -1144,6 +1169,7 @@ static const TypeInfo types[] = { }, { .name = TYPE_HOST_IOMMU_DEVICE_LEGACY_VFIO, .parent = TYPE_HOST_IOMMU_DEVICE, + .class_init = hiod_legacy_vfio_class_init, } };