From patchwork Mon Apr 8 08:12:27 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Duan, Zhenzhong" X-Patchwork-Id: 13620742 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 0F206C67861 for ; Mon, 8 Apr 2024 08:16:30 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rtkAY-0003Nh-RB; Mon, 08 Apr 2024 04:16:00 -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 1rtkA7-0003Gz-Ku for qemu-devel@nongnu.org; Mon, 08 Apr 2024 04:15:31 -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 1rtkA5-00089q-SB for qemu-devel@nongnu.org; Mon, 08 Apr 2024 04:15:31 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1712564130; x=1744100130; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=RajnNcVKs+6ypzH6WcL3+uFvOHZi+tCP/jt2sxffnkU=; b=Cc8/KOWif++x1+v7k0r0xmFmvWabN3dCPADo09HvqeWoaw0nnkx8wFnB FfdiW7LI4i2cW+0nx1YT12xImMlD4jO1vdPxraPGsWXnspLxetjUiwSKB MVcUUIypcCP+SQfhR4tXS5VaMBsd/zCW3IS8P0+GOnbF25ZIKFW1yU3Mb eSOG+wdZX/vtG67QvBaeKD7ZrMMUH419PVnNleMq+iHyhlMwVlsEkyVxx heJ8HD8cY1uofZqCTI4rmeTp/Lx707kjxPkgqbisry8Rhkvaliwiyu6nh j5r1UANhCgLE3eSQGcfD9nNsIuO/I7t285HsgJw9w8/jhyUEqbY0ppMa0 w==; X-CSE-ConnectionGUID: hqIRHT3DT32Sx+7Ct/CIKw== X-CSE-MsgGUID: ahDLwpJITZ2afy+t+nQ4qA== X-IronPort-AV: E=McAfee;i="6600,9927,11037"; a="19199736" X-IronPort-AV: E=Sophos;i="6.07,186,1708416000"; d="scan'208";a="19199736" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by fmvoesa104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Apr 2024 01:15:29 -0700 X-CSE-ConnectionGUID: 13QfKuu2QaiwI0B/e4f+Jg== X-CSE-MsgGUID: Mr0nPNFWTk2LC9ThWK5AZQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,186,1708416000"; d="scan'208";a="19845213" Received: from spr-s2600bt.bj.intel.com ([10.240.192.124]) by fmviesa006-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Apr 2024 01:15:26 -0700 From: Zhenzhong Duan To: qemu-devel@nongnu.org Cc: alex.williamson@redhat.com, clg@redhat.com, eric.auger@redhat.com, peterx@redhat.com, jasowang@redhat.com, mst@redhat.com, jgg@nvidia.com, nicolinc@nvidia.com, joao.m.martins@oracle.com, kevin.tian@intel.com, yi.l.liu@intel.com, chao.p.peng@intel.com, Zhenzhong Duan Subject: [PATCH v2 07/10] backends/iommufd: Implement get_host_iommu_info() callback Date: Mon, 8 Apr 2024 16:12:27 +0800 Message-Id: <20240408081230.1030078-8-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240408081230.1030078-1-zhenzhong.duan@intel.com> References: <20240408081230.1030078-1-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: -51 X-Spam_score: -5.2 X-Spam_bar: ----- X-Spam_report: (-5.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-2.355, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, 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 It calls iommufd_backend_get_device_info() to get host IOMMU related information. Define a common structure HIOD_IOMMUFD_INFO to describe the info returned from kernel. Currently only vtd, but easy to add arm smmu when kernel supports. Signed-off-by: Zhenzhong Duan --- include/sysemu/iommufd.h | 7 +++++++ backends/iommufd.c | 17 +++++++++++++++++ 2 files changed, 24 insertions(+) diff --git a/include/sysemu/iommufd.h b/include/sysemu/iommufd.h index fa1a866237..44ec1335b2 100644 --- a/include/sysemu/iommufd.h +++ b/include/sysemu/iommufd.h @@ -39,6 +39,13 @@ int iommufd_backend_get_device_info(IOMMUFDBackend *be, uint32_t devid, enum iommu_hw_info_type *type, void *data, uint32_t len, Error **errp); +typedef struct HIOD_IOMMUFD_INFO { + enum iommu_hw_info_type type; + union { + struct iommu_hw_info_vtd vtd; + } data; +} HIOD_IOMMUFD_INFO; + #define TYPE_HIOD_IOMMUFD TYPE_HOST_IOMMU_DEVICE "-iommufd" OBJECT_DECLARE_TYPE(HIODIOMMUFD, HIODIOMMUFDClass, HIOD_IOMMUFD) diff --git a/backends/iommufd.c b/backends/iommufd.c index 559affa9ec..1e9c469e65 100644 --- a/backends/iommufd.c +++ b/backends/iommufd.c @@ -240,8 +240,25 @@ void hiod_iommufd_init(HIODIOMMUFD *idev, IOMMUFDBackend *iommufd, idev->devid = devid; } +static int hiod_iommufd_get_host_iommu_info(HostIOMMUDevice *hiod, + void *data, uint32_t len, + Error **errp) +{ + HIODIOMMUFD *idev = HIOD_IOMMUFD(hiod); + HIOD_IOMMUFD_INFO *info = data; + + assert(sizeof(HIOD_IOMMUFD_INFO) <= len); + + return iommufd_backend_get_device_info(idev->iommufd, idev->devid, + &info->type, &info->data, + sizeof(info->data), errp); +} + static void hiod_iommufd_class_init(ObjectClass *oc, void *data) { + HostIOMMUDeviceClass *hiodc = HOST_IOMMU_DEVICE_CLASS(oc); + + hiodc->get_host_iommu_info = hiod_iommufd_get_host_iommu_info; } static const TypeInfo types[] = {