From patchwork Mon Apr 8 08:12:26 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Duan, Zhenzhong" X-Patchwork-Id: 13620744 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 3C9D7CD128A for ; Mon, 8 Apr 2024 08:16:51 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rtkA6-0003EL-IL; Mon, 08 Apr 2024 04:15:30 -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 1rtkA5-0003Bg-1D for qemu-devel@nongnu.org; Mon, 08 Apr 2024 04:15:29 -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 1rtkA2-00089q-Bm for qemu-devel@nongnu.org; Mon, 08 Apr 2024 04:15:28 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1712564126; x=1744100126; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=OEWdQXklwv4XAzXDZ24doa8pgMnpGHHQ2cUDfFr+BSg=; b=EscL1OsXRbd9lMpiKkbtrEyckacGYt2YgudMJ/h44iljKb4U2E9eGO5t iQIdVmpzmBvXuDXqKNHaJDFaPbXqYWPE2HfOe/yP0EfbBBQ7/g2s+p81Q bZOIDJmOMTSmY4llx6BAR9dOSLw5o0xJJiX0RE68iox7nRscW4RfdQbAA CaVWBwfCBlpLo5ShY6GbBZJaLb/bI5CKIrW04JnqnqEej6NXWNuqkdLFg 9T0WqEw4HSLQdw6nd4wn5kPZkdyz/Gevyp3pCOg7G7lreie/Pan/prPti auuge6vjd7K25EGDJIlknJa+cLSB75MVerLVQoYuDtWHF3JJu9Je7BPQe Q==; X-CSE-ConnectionGUID: 7/LfREySRqKgr6C9mo1fWw== X-CSE-MsgGUID: ccJNiClERRWSVYXvrqAduQ== X-IronPort-AV: E=McAfee;i="6600,9927,11037"; a="19199722" X-IronPort-AV: E=Sophos;i="6.07,186,1708416000"; d="scan'208";a="19199722" 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 01:15:26 -0700 X-CSE-ConnectionGUID: j4JXK4wBQImrPHCXFQIKeQ== X-CSE-MsgGUID: XnhhlLBaQBKl+om8ORecHg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,186,1708416000"; d="scan'208";a="19845210" 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 01:15:22 -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 , Yi Sun Subject: [PATCH v2 06/10] backends/iommufd: Introduce helper function iommufd_backend_get_device_info() Date: Mon, 8 Apr 2024 16:12:26 +0800 Message-Id: <20240408081230.1030078-7-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 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 71c53cbb45..fa1a866237 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" #define TYPE_IOMMUFD_BACKEND "iommufd" @@ -34,6 +35,9 @@ 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); +int iommufd_backend_get_device_info(IOMMUFDBackend *be, uint32_t devid, + enum iommu_hw_info_type *type, + void *data, uint32_t len, Error **errp); #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 ef8b3a808b..559affa9ec 100644 --- a/backends/iommufd.c +++ b/backends/iommufd.c @@ -20,7 +20,6 @@ #include "monitor/monitor.h" #include "trace.h" #include -#include static void iommufd_backend_init(Object *obj) { @@ -212,6 +211,28 @@ int iommufd_backend_unmap_dma(IOMMUFDBackend *be, uint32_t ioas_id, return ret; } +int iommufd_backend_get_device_info(IOMMUFDBackend *be, uint32_t devid, + enum iommu_hw_info_type *type, + void *data, uint32_t len, Error **errp) +{ + struct iommu_hw_info info = { + .size = sizeof(info), + .dev_id = devid, + .data_len = len, + .data_uptr = (uintptr_t)data, + }; + int ret; + + ret = ioctl(be->fd, IOMMU_GET_HW_INFO, &info); + if (ret) { + error_setg_errno(errp, errno, "Failed to get hardware info"); + } else { + *type = info.out_data_type; + } + + return ret; +} + void hiod_iommufd_init(HIODIOMMUFD *idev, IOMMUFDBackend *iommufd, uint32_t devid) {