From patchwork Mon Apr 29 06:50:35 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Duan, Zhenzhong" X-Patchwork-Id: 13646371 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 C37D2C4345F for ; Mon, 29 Apr 2024 06:54:05 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s1Kti-0001jI-U8; Mon, 29 Apr 2024 02:53:58 -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 1s1Ktf-0001i1-Hb for qemu-devel@nongnu.org; Mon, 29 Apr 2024 02:53:55 -0400 Received: from mgamail.intel.com ([192.198.163.16]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s1Ktd-0007m1-Px for qemu-devel@nongnu.org; Mon, 29 Apr 2024 02:53:55 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1714373634; x=1745909634; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=YlBWPY+nZvenxvE2K0yAhC5S7Ucg9G5VHHQ4uysEptc=; b=lhrCszpfJBH/GYlONyoWeFkoSxDtzaltIhQDyEyChtXD/by1GVkHyR/O Y3Fkl9WhaaOLtDBWFXzVKtFWI/UgHR84gk/6zcmHDLMJP064+6c8NCXnu ObDocw/eTrWCjPaBQQpsBguygQn4m/4JgeQ97h5CoxcHdlnTjIuJU696+ 0ZoiOd5KgmbSSA+Dd6tm2K/lyM5HIvRqFMEn88UsYySoLB/7eyOIhmBER 9viFBIIMYGaCdJiSuJuAotPd0lGNtQKEK+Is3IfEi1PaX7IucPGk1HOd7 kX8wht35sbXs16ZcIhqruzupBRBtC/+NIT91wp7vgo4nP3/k+xGUokIaZ w==; X-CSE-ConnectionGUID: ubYAO+Q+Ta6+LoptP+EF3A== X-CSE-MsgGUID: pPCiCI1ZTv+4huGMIie6Vw== X-IronPort-AV: E=McAfee;i="6600,9927,11057"; a="10560705" X-IronPort-AV: E=Sophos;i="6.07,239,1708416000"; d="scan'208";a="10560705" Received: from orviesa001.jf.intel.com ([10.64.159.141]) by fmvoesa110.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Apr 2024 23:53:53 -0700 X-CSE-ConnectionGUID: Od34pW10QSe0Ic4IZLXMCw== X-CSE-MsgGUID: GiRo1UPxTuGj0HZS+otJgg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,239,1708416000"; d="scan'208";a="63488058" Received: from unknown (HELO SPR-S2600BT.bj.intel.com) ([10.240.192.124]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Apr 2024 23:53:50 -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, kevin.tian@intel.com, yi.l.liu@intel.com, chao.p.peng@intel.com, Zhenzhong Duan , Yi Sun Subject: [PATCH v3 08/19] backends/iommufd: Introduce helper function iommufd_backend_get_device_info() Date: Mon, 29 Apr 2024 14:50:35 +0800 Message-Id: <20240429065046.3688701-9-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240429065046.3688701-1-zhenzhong.duan@intel.com> References: <20240429065046.3688701-1-zhenzhong.duan@intel.com> MIME-Version: 1.0 Received-SPF: pass client-ip=192.198.163.16; envelope-from=zhenzhong.duan@intel.com; helo=mgamail.intel.com X-Spam_score_int: -44 X-Spam_score: -4.5 X-Spam_bar: ---- X-Spam_report: (-4.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.114, 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 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 | 24 +++++++++++++++++++++++- 2 files changed, 27 insertions(+), 1 deletion(-) diff --git a/include/sysemu/iommufd.h b/include/sysemu/iommufd.h index 6a9fb0007a..e9593637a3 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" #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); +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_HOST_IOMMU_DEVICE_IOMMUFD TYPE_HOST_IOMMU_DEVICE "-iommufd" OBJECT_DECLARE_TYPE(HostIOMMUDeviceIOMMUFD, HostIOMMUDeviceIOMMUFDClass, diff --git a/backends/iommufd.c b/backends/iommufd.c index 19e46194a2..d61209788a 100644 --- a/backends/iommufd.c +++ b/backends/iommufd.c @@ -19,7 +19,6 @@ #include "monitor/monitor.h" #include "trace.h" #include -#include static void iommufd_backend_init(Object *obj) { @@ -211,6 +210,29 @@ 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 { + g_assert(type); + *type = info.out_data_type; + } + + return ret; +} + static const TypeInfo types[] = { { .name = TYPE_IOMMUFD_BACKEND,