From nobody Sun Apr 12 15:28:33 2026 Delivered-To: importer2@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+importer2=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=intel.com ARC-Seal: i=1; a=rsa-sha256; t=1715074111; cv=none; d=zohomail.com; s=zohoarc; b=MFey9vKnO6P5uVq1mqa7KBTPBU5T4EEzdMpMV4IhEql2oWbKFNZk4wiVHchmoLcxBXd4WW8/IiD9DS6caJg08VZWkDH3TF0RCMuCLpSGtcjsRJO4m30TMixYUQd9J6ZkP6iXLZG3V4hV16K89yCtrT10KB6tHhzGlXUAYC9fG5s= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1715074111; 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=X82xF4dStm/Q+lJKiL9LONGjXHog1dIlNgocmJMAmLY=; b=kbJjVWHMu80imX7+ObBU2jkGVaF2e9jriO8zNBfCkhtuEUig/Gs+dDReqoIQINfChu2/pzuYDKWMRtZjcuTiHw5dhfWWPA7ojlH5jHirvC/QbnnAAG08jR+fMByRYVIOPD0DHoxWpqJMf14GXnFBGGSwv2dypnY682By0U0JvRQ= 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+importer2=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 1715074111518511.3420219318366; Tue, 7 May 2024 02:28:31 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s4H3y-0001jc-B4; Tue, 07 May 2024 05:24:42 -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 1s4H2u-0000O6-0o for qemu-devel@nongnu.org; Tue, 07 May 2024 05:23:38 -0400 Received: from mgamail.intel.com ([198.175.65.21]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s4H2s-0000Bi-AV for qemu-devel@nongnu.org; Tue, 07 May 2024 05:23:35 -0400 Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 May 2024 02:23:33 -0700 Received: from unknown (HELO SPR-S2600BT.bj.intel.com) ([10.240.192.124]) by fmviesa010-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 May 2024 02:23:30 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1715073814; x=1746609814; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=WeswOauUsaVYyqkGscGH7PezcABsM8CfGRKKDlw8bvE=; b=cHytTYk9V5XnLjdSAaJUa1ohqhQYQczEHlPH9pR6kD3QgfibR4L8dMgy T4VVXJ9KWA1GsfuynF0UE0dkwdexDyF5E3mPQ0WZLjH0gNXciYovWqeUb WPYARnTLEW88WF/wF+IApF7deg+zfgyRPu+gWt7Lo4p2/Q7hUp43i7tTQ bZ9ynlfYhQ2hw7e1JkZK7D8CZtG9ZAJ6OXJ3h9SoPfyRqBP3f7mJW9Y6a tXA0cgG87PoYs/Xmo6Pi1O/Xo0GJ2xw4f0zLv63cQuFJsXvUIVDZT8UmD 2HtD9QLzTBPANECuNcH5cNei5BwelPz6xYGLIdTuoQSeuNAFDXYIulvIK g==; X-CSE-ConnectionGUID: pIha95czSe+caslI7IYjog== X-CSE-MsgGUID: 5Wm/oD+VSyWQChxgrWIRaQ== X-IronPort-AV: E=McAfee;i="6600,9927,11065"; a="10785239" X-IronPort-AV: E=Sophos;i="6.07,260,1708416000"; d="scan'208";a="10785239" X-CSE-ConnectionGUID: kNNn6mDMTsSd8SayYAp+uA== X-CSE-MsgGUID: Ydg2xP4HQMWf6EqtwL/g3A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,260,1708416000"; d="scan'208";a="28553341" 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 , Yi Sun Subject: [PATCH v4 08/19] backends/iommufd: Introduce helper function iommufd_backend_get_device_info() Date: Tue, 7 May 2024 17:20:32 +0800 Message-Id: <20240507092043.1172717-9-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240507092043.1172717-1-zhenzhong.duan@intel.com> References: <20240507092043.1172717-1-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+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=198.175.65.21; 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1715074113351100001 Content-Type: text/plain; charset="utf-8" Introduce a helper function iommufd_backend_get_device_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 | 23 ++++++++++++++++++++++- 2 files changed, 26 insertions(+), 1 deletion(-) diff --git a/include/sysemu/iommufd.h b/include/sysemu/iommufd.h index f6e6d6e1f9..ee1907c23a 100644 --- a/include/sysemu/iommufd.h +++ b/include/sysemu/iommufd.h @@ -17,6 +17,7 @@ #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" @@ -47,6 +48,9 @@ int iommufd_backend_map_dma(IOMMUFDBackend *be, uint32_t = ioas_id, hwaddr iova, ram_addr_t size, void *vaddr, bool readonly); int iommufd_backend_unmap_dma(IOMMUFDBackend *be, uint32_t ioas_id, hwaddr iova, ram_addr_t size); +bool iommufd_backend_get_device_info(IOMMUFDBackend *be, uint32_t devid, + enum iommu_hw_info_type *type, + void *data, uint32_t len, Error **err= p); =20 #define TYPE_HOST_IOMMU_DEVICE_IOMMUFD TYPE_HOST_IOMMU_DEVICE "-iommufd" #endif diff --git a/backends/iommufd.c b/backends/iommufd.c index 012f18d8d8..06bf20fd05 100644 --- a/backends/iommufd.c +++ b/backends/iommufd.c @@ -19,7 +19,6 @@ #include "monitor/monitor.h" #include "trace.h" #include -#include =20 static void iommufd_backend_init(Object *obj) { @@ -208,6 +207,28 @@ int iommufd_backend_unmap_dma(IOMMUFDBackend *be, uint= 32_t ioas_id, return ret; } =20 +bool iommufd_backend_get_device_info(IOMMUFDBackend *be, uint32_t devid, + enum iommu_hw_info_type *type, + void *data, uint32_t len, Error **err= p) +{ + struct iommu_hw_info info =3D { + .size =3D sizeof(info), + .dev_id =3D devid, + .data_len =3D len, + .data_uptr =3D (uintptr_t)data, + }; + + if (ioctl(be->fd, IOMMU_GET_HW_INFO, &info)) { + error_setg_errno(errp, errno, "Failed to get hardware info"); + return false; + } + + g_assert(type); + *type =3D info.out_data_type; + + return true; +} + static const TypeInfo types[] =3D { { .name =3D TYPE_IOMMUFD_BACKEND, --=20 2.34.1