From nobody Tue Nov 26 16:38:10 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass header.i=@intel.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=intel.com ARC-Seal: i=1; a=rsa-sha256; t=1706772735; cv=none; d=zohomail.com; s=zohoarc; b=WyCe+sAiEQSJ150JpkYkPU8hiUiFIyv6PgERco3w85iJBIZrL0aPIRvFRNLkj/AYjhM9v8OSaIuBdEBraB80NZQwiczdvqcv+UnVRlt+oURVu5vOI5EM7S1tIZ7MY4ziwK2QA9WsbiWGo8R9D1zwMWrILvNNPe7zAwHiL7FYsgg= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1706772735; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=kjzxs5OGP9wK1Dnle3j/ntBQLTauX5jEO73qwhIFFQE=; b=eaIpM/DhmOTzEwzTLKA6mgAPbBsvNhSSfe3vWmcNBy+oP6HJTN06SyBj4Kvb4TV/YBDqi3Gzimsn4Q8Zrs0z8eeOKGClNPzScoSskd2nQjzux4sSS34ptZtjvM65p10b8ey4n2jvV3HWBXDJQdSuClmyyHBzljK6fmy3nReNyTM= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=@intel.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1706772735623256.7374988378923; Wed, 31 Jan 2024 23:32:15 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rVRYE-00075p-Ro; Thu, 01 Feb 2024 02:31:58 -0500 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 1rVRY4-0006kL-Qq for qemu-devel@nongnu.org; Thu, 01 Feb 2024 02:31:50 -0500 Received: from mgamail.intel.com ([192.55.52.120]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rVRXr-0001hD-Ob for qemu-devel@nongnu.org; Thu, 01 Feb 2024 02:31:37 -0500 Received: from orviesa004.jf.intel.com ([10.64.159.144]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 Jan 2024 23:31:34 -0800 Received: from spr-s2600bt.bj.intel.com ([10.240.192.124]) by orviesa004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 Jan 2024 23:31:29 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1706772695; x=1738308695; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=4UuNU52+wzlDsbtsKgRQzd/clhv4zIKmdvD3x0j7SeU=; b=kB4Z1eRUBjkQFRWxhO0LUzRLJ5dWICyd+d325pT6Q20nAIGLKOgYvdSG G/NXXOeoiSB7fx5VI84jchp69LtKahcY8n9XzhJb7hSDHcCKKwQ6yRpvw WczHERK7Lma11lP2xNps6aSDmgVDMe67PcvEJ5f0eiFRHBkjCAxQLSlqc mEdq+B2ebH4XRP6bu9dDzJKcMLwLzjQYFdOXeB8ym5CfSJ3Tv4Zvo5cYO kXWarlxntbM6sAVVeYaWqZZah58Jf0OBBii30W8Fa0BEwW20coZgA9HWV LxSuKz0xmeNavcX6PyHgBV2t6XgUxlbdtfsu6O63Vw/lO8lEdItqS+pTP Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10969"; a="402676925" X-IronPort-AV: E=Sophos;i="6.05,234,1701158400"; d="scan'208";a="402676925" X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.05,234,1701158400"; d="scan'208";a="4443378" 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, yi.y.sun@intel.com, chao.p.peng@intel.com, Zhenzhong Duan , Yi Sun Subject: [PATCH rfcv2 15/18] backends/iommufd: Introduce helper function iommufd_device_get_info() Date: Thu, 1 Feb 2024 15:28:15 +0800 Message-Id: <20240201072818.327930-16-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240201072818.327930-1-zhenzhong.duan@intel.com> References: <20240201072818.327930-1-zhenzhong.duan@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=192.55.52.120; envelope-from=zhenzhong.duan@intel.com; helo=mgamail.intel.com X-Spam_score_int: -56 X-Spam_score: -5.7 X-Spam_bar: ----- X-Spam_report: (-5.7 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1.292, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1706772736104100002 Content-Type: text/plain; charset="utf-8" Introduce a helper function iommufd_device_get_info() to get host IOMMU related information through iommufd uAPI. Signed-off-by: Yi Liu Signed-off-by: Yi Sun Signed-off-by: Zhenzhong Duan --- include/sysemu/iommufd.h | 4 ++++ backends/iommufd.c | 25 ++++++++++++++++++++++++- 2 files changed, 28 insertions(+), 1 deletion(-) diff --git a/include/sysemu/iommufd.h b/include/sysemu/iommufd.h index c3f3469760..ec8b80d8d9 100644 --- a/include/sysemu/iommufd.h +++ b/include/sysemu/iommufd.h @@ -4,6 +4,7 @@ #include "qom/object.h" #include "exec/hwaddr.h" #include "exec/cpu-common.h" +#include #include "sysemu/host_iommu_device.h" =20 #define TYPE_IOMMUFD_BACKEND "iommufd" @@ -47,4 +48,7 @@ typedef struct IOMMUFDDevice { } IOMMUFDDevice; =20 void iommufd_device_init(IOMMUFDDevice *idev); +int iommufd_device_get_info(IOMMUFDDevice *idev, + enum iommu_hw_info_type *type, + uint32_t len, void *data, Error **errp); #endif diff --git a/backends/iommufd.c b/backends/iommufd.c index d92791bba9..1b0b991747 100644 --- a/backends/iommufd.c +++ b/backends/iommufd.c @@ -20,7 +20,6 @@ #include "monitor/monitor.h" #include "trace.h" #include -#include =20 static void iommufd_backend_init(Object *obj) { @@ -237,3 +236,27 @@ void iommufd_device_init(IOMMUFDDevice *idev) host_iommu_base_device_init(&idev->base, HID_IOMMUFD, sizeof(IOMMUFDDevice)); } + +int iommufd_device_get_info(IOMMUFDDevice *idev, + enum iommu_hw_info_type *type, + uint32_t len, void *data, Error **errp) +{ + struct iommu_hw_info info =3D { + .size =3D sizeof(info), + .flags =3D 0, + .dev_id =3D idev->devid, + .data_len =3D len, + .__reserved =3D 0, + .data_uptr =3D (uintptr_t)data, + }; + int ret; + + ret =3D ioctl(idev->iommufd->fd, IOMMU_GET_HW_INFO, &info); + if (ret) { + error_setg_errno(errp, errno, "Failed to get hardware info"); + } else { + *type =3D info.out_data_type; + } + + return ret; +} --=20 2.34.1