From patchwork Wed May 8 09:03:48 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Duan, Zhenzhong" X-Patchwork-Id: 13658273 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 C0AA9C25B5F for ; Wed, 8 May 2024 09:08:37 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s4dHX-0001Dx-DS; Wed, 08 May 2024 05:08:11 -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 1s4dHJ-0000Hp-0O for qemu-devel@nongnu.org; Wed, 08 May 2024 05:07:59 -0400 Received: from mgamail.intel.com ([198.175.65.18]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s4dHG-0005S1-Kv for qemu-devel@nongnu.org; Wed, 08 May 2024 05:07:56 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1715159275; x=1746695275; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=3evy5Fn1NeUvF8A+wdco68VIVay91RZK5fR/tL35KqQ=; b=Up5EM6RshJkQreGIsOa3bEiQSuc6uKH6JRoKcGDPzkyZg7oRBDiIfH6c 8ECe+0b3Yt+kbE8HSfNx4IzubiwErKFwABC7l9JX4Dm1O7kH3K9UU9mMf ixcnbAwxxtElW+qk5UB8STHYUqcmzrCh/uIE4LyYaujDSecECmo7Ln0ml JwpF+AjOIY+/yx3aLM37+HSRWxfk0d0uCCk8cZYE2/n6ZqDzpcBA1xcdr R6ykzXyq1jdJn5ZKDPcjzdanQpJJKx5n1Zu8g7xStbJpVT6y3n3DfT9DV cUrG9hHk4GhbtwzJmw4zqwiVpcv4HFiqpB7uLZ9pEPUprvFPhCtyV1wQV g==; X-CSE-ConnectionGUID: /PbniVtQRy2zXZbP1QbjxA== X-CSE-MsgGUID: huqD/+RZSFCjZReahWiRJA== X-IronPort-AV: E=McAfee;i="6600,9927,11066"; a="11161043" X-IronPort-AV: E=Sophos;i="6.08,144,1712646000"; d="scan'208";a="11161043" Received: from orviesa006.jf.intel.com ([10.64.159.146]) by orvoesa110.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 May 2024 02:07:54 -0700 X-CSE-ConnectionGUID: ISsGmb5SQRKQrUIr8V/pzg== X-CSE-MsgGUID: Rywo4QF+TPuWPx/ENFZlQQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,144,1712646000"; d="scan'208";a="29226650" Received: from unknown (HELO SPR-S2600BT.bj.intel.com) ([10.240.192.124]) by orviesa006-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 May 2024 02:07:50 -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 v5 13/19] vfio: Create host IOMMU device instance Date: Wed, 8 May 2024 17:03:48 +0800 Message-Id: <20240508090354.1815561-14-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240508090354.1815561-1-zhenzhong.duan@intel.com> References: <20240508090354.1815561-1-zhenzhong.duan@intel.com> MIME-Version: 1.0 Received-SPF: pass client-ip=198.175.65.18; envelope-from=zhenzhong.duan@intel.com; helo=mgamail.intel.com X-Spam_score_int: -49 X-Spam_score: -5.0 X-Spam_bar: ----- X-Spam_report: (-5.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.581, 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 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 Create host IOMMU device instance in vfio_attach_device() and call .realize() to initialize it further. Suggested-by: Cédric Le Goater Signed-off-by: Zhenzhong Duan --- include/hw/vfio/vfio-common.h | 1 + hw/vfio/common.c | 16 +++++++++++++++- 2 files changed, 16 insertions(+), 1 deletion(-) diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h index affb73f209..94428abcf4 100644 --- a/include/hw/vfio/vfio-common.h +++ b/include/hw/vfio/vfio-common.h @@ -126,6 +126,7 @@ typedef struct VFIODevice { OnOffAuto pre_copy_dirty_page_tracking; bool dirty_pages_supported; bool dirty_tracking; + HostIOMMUDevice *hiod; int devid; IOMMUFDBackend *iommufd; } VFIODevice; diff --git a/hw/vfio/common.c b/hw/vfio/common.c index 9f1f2e19f7..970c9e3a5f 100644 --- a/hw/vfio/common.c +++ b/hw/vfio/common.c @@ -1497,6 +1497,7 @@ bool vfio_attach_device(char *name, VFIODevice *vbasedev, { const VFIOIOMMUClass *ops = VFIO_IOMMU_CLASS(object_class_by_name(TYPE_VFIO_IOMMU_LEGACY)); + HostIOMMUDevice *hiod; if (vbasedev->iommufd) { ops = VFIO_IOMMU_CLASS(object_class_by_name(TYPE_VFIO_IOMMU_IOMMUFD)); @@ -1504,7 +1505,19 @@ bool vfio_attach_device(char *name, VFIODevice *vbasedev, assert(ops); - return ops->attach_device(name, vbasedev, as, errp); + if (!ops->attach_device(name, vbasedev, as, errp)) { + return false; + } + + hiod = HOST_IOMMU_DEVICE(object_new(ops->hiod_typename)); + if (!HOST_IOMMU_DEVICE_GET_CLASS(hiod)->realize(hiod, vbasedev, errp)) { + object_unref(hiod); + ops->detach_device(vbasedev); + return false; + } + vbasedev->hiod = hiod; + + return true; } void vfio_detach_device(VFIODevice *vbasedev) @@ -1512,5 +1525,6 @@ void vfio_detach_device(VFIODevice *vbasedev) if (!vbasedev->bcontainer) { return; } + object_unref(vbasedev->hiod); vbasedev->bcontainer->ops->detach_device(vbasedev); }