From patchwork Mon Apr 29 06:50:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Duan, Zhenzhong" X-Patchwork-Id: 13646378 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 C78BBC04FFE for ; Mon, 29 Apr 2024 06:55:08 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s1KuH-00029R-4t; Mon, 29 Apr 2024 02:54:35 -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 1s1Ktr-0001zR-57 for qemu-devel@nongnu.org; Mon, 29 Apr 2024 02:54:10 -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 1s1Ktp-0007m1-7i for qemu-devel@nongnu.org; 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28 Apr 2024 23:54:05 -0700 X-CSE-ConnectionGUID: uCRjNM4ETrOBFlLyg3vs8w== X-CSE-MsgGUID: c7qiEA1bSnOUbVz8tp70fQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,239,1708416000"; d="scan'208";a="63488156" 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 23:54:01 -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 Subject: [PATCH v3 11/19] backends/iommufd: Implement HostIOMMUDeviceClass::check_cap() handler Date: Mon, 29 Apr 2024 14:50:38 +0800 Message-Id: <20240429065046.3688701-12-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 Suggested-by: Cédric Le Goater Signed-off-by: Zhenzhong Duan --- backends/iommufd.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/backends/iommufd.c b/backends/iommufd.c index d61209788a..28faec528e 100644 --- a/backends/iommufd.c +++ b/backends/iommufd.c @@ -233,6 +233,23 @@ int iommufd_backend_get_device_info(IOMMUFDBackend *be, uint32_t devid, return ret; } +static int hiod_iommufd_check_cap(HostIOMMUDevice *hiod, int cap, Error **errp) +{ + switch (cap) { + case HOST_IOMMU_DEVICE_CAP_IOMMUFD: + return 1; + default: + return host_iommu_device_check_cap_common(hiod, cap, errp); + } +} + +static void hiod_iommufd_class_init(ObjectClass *oc, void *data) +{ + HostIOMMUDeviceClass *hioc = HOST_IOMMU_DEVICE_CLASS(oc); + + hioc->check_cap = hiod_iommufd_check_cap; +}; + static const TypeInfo types[] = { { .name = TYPE_IOMMUFD_BACKEND, @@ -251,6 +268,7 @@ static const TypeInfo types[] = { .parent = TYPE_HOST_IOMMU_DEVICE, .instance_size = sizeof(HostIOMMUDeviceIOMMUFD), .class_size = sizeof(HostIOMMUDeviceIOMMUFDClass), + .class_init = hiod_iommufd_class_init, .abstract = true, } };