From patchwork Tue May 7 09:20:35 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Duan, Zhenzhong" X-Patchwork-Id: 13656467 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 D7B9FC25B4F for ; Tue, 7 May 2024 09:27:08 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s4H4N-0002is-7A; Tue, 07 May 2024 05:25:07 -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 1s4H36-0000YQ-71 for qemu-devel@nongnu.org; Tue, 07 May 2024 05:23:50 -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 1s4H34-0000Bi-Ex for qemu-devel@nongnu.org; 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07 May 2024 02:23:45 -0700 X-CSE-ConnectionGUID: UtySz7hjQWScEHKC+xsOiQ== X-CSE-MsgGUID: hLm0HuXcTQSs7qGqD6XEhQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,260,1708416000"; d="scan'208";a="28553436" 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 02:23:42 -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, clement.mathieu--drif@eviden.com, kevin.tian@intel.com, yi.l.liu@intel.com, chao.p.peng@intel.com, Zhenzhong Duan Subject: [PATCH v4 11/19] backends/iommufd: Implement HostIOMMUDeviceClass::get_cap() handler Date: Tue, 7 May 2024 17:20:35 +0800 Message-Id: <20240507092043.1172717-12-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 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Suggested-by: Cédric Le Goater Signed-off-by: Zhenzhong Duan --- backends/iommufd.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/backends/iommufd.c b/backends/iommufd.c index 06bf20fd05..7c332bd167 100644 --- a/backends/iommufd.c +++ b/backends/iommufd.c @@ -229,6 +229,28 @@ bool iommufd_backend_get_device_info(IOMMUFDBackend *be, uint32_t devid, return true; } +static int hiod_iommufd_get_cap(HostIOMMUDevice *hiod, int cap, Error **errp) +{ + HostIOMMUDeviceCaps *caps = &hiod->caps; + + switch (cap) { + case HOST_IOMMU_DEVICE_CAP_IOMMU_TYPE: + return caps->type; + case HOST_IOMMU_DEVICE_CAP_AW_BITS: + return caps->aw_bits; + default: + error_setg(errp, "Not support get cap %x", cap); + return -EINVAL; + } +} + +static void hiod_iommufd_class_init(ObjectClass *oc, void *data) +{ + HostIOMMUDeviceClass *hioc = HOST_IOMMU_DEVICE_CLASS(oc); + + hioc->get_cap = hiod_iommufd_get_cap; +}; + static const TypeInfo types[] = { { .name = TYPE_IOMMUFD_BACKEND, @@ -245,6 +267,7 @@ static const TypeInfo types[] = { }, { .name = TYPE_HOST_IOMMU_DEVICE_IOMMUFD, .parent = TYPE_HOST_IOMMU_DEVICE, + .class_init = hiod_iommufd_class_init, .abstract = true, } };