From patchwork Tue Jul 11 02:31:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yi Liu X-Patchwork-Id: 13307978 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4DD49C001DD for ; Tue, 11 Jul 2023 02:32:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231678AbjGKCcA (ORCPT ); Mon, 10 Jul 2023 22:32:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35774 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231414AbjGKCbw (ORCPT ); Mon, 10 Jul 2023 22:31:52 -0400 Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 198C3CA; Mon, 10 Jul 2023 19:31:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1689042711; x=1720578711; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=IzrAn20ByJL63NIYU7HEQmy4xx7HzzCXurkAzXmi5jA=; b=e85IOZschsItG7xFeWn1hGDSkSDxFoxpnG9YBWwB9XLX/BbszQeLVzmp yXJOVKrgcSDAosQs+oTb3IPJ9TLl2M8Dao8ig9D+tEzVG7Z/UJQoPoKQo VDvG8hB0zxnJOfIUN9+36Pqrue7SFXH/P4IYLRb8NwPGKwybRFMZMKH2m +f5SQAl32LjKYA2WOrJmgdmbj6vh3nB4lm0pR0IutjUSSq7nRUSLtQ67g /QXeMIuqn8ROsm/rUDmxHlfGix0Xx8IZIsdenP7HLXvuKgTtButKosqJ6 0c1ujBJGywje7Uhn/RKYrZ5x+6KNsr5IglyQO/kYhiUIYFtGuxj5uY337 w==; X-IronPort-AV: E=McAfee;i="6600,9927,10767"; a="368004700" X-IronPort-AV: E=Sophos;i="6.01,195,1684825200"; d="scan'208";a="368004700" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Jul 2023 19:31:31 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10767"; a="720907585" X-IronPort-AV: E=Sophos;i="6.01,195,1684825200"; d="scan'208";a="720907585" Received: from 984fee00a4c6.jf.intel.com ([10.165.58.231]) by orsmga002.jf.intel.com with ESMTP; 10 Jul 2023 19:31:31 -0700 From: Yi Liu To: alex.williamson@redhat.com, jgg@nvidia.com, kevin.tian@intel.com Cc: joro@8bytes.org, robin.murphy@arm.com, cohuck@redhat.com, eric.auger@redhat.com, nicolinc@nvidia.com, kvm@vger.kernel.org, mjrosato@linux.ibm.com, chao.p.peng@linux.intel.com, yi.l.liu@intel.com, yi.y.sun@linux.intel.com, peterx@redhat.com, jasowang@redhat.com, shameerali.kolothum.thodi@huawei.com, lulu@redhat.com, suravee.suthikulpanit@amd.com, intel-gvt-dev@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, linux-s390@vger.kernel.org, xudong.hao@intel.com, yan.y.zhao@intel.com, terrence.xu@intel.com, yanting.jiang@intel.com, zhenzhong.duan@intel.com, clegoate@redhat.com Subject: [PATCH v9 06/10] vfio: Mark cdev usage in vfio_device Date: Mon, 10 Jul 2023 19:31:22 -0700 Message-Id: <20230711023126.5531-7-yi.l.liu@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230711023126.5531-1-yi.l.liu@intel.com> References: <20230711023126.5531-1-yi.l.liu@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This can be used to differentiate whether to report group_id or devid in the revised VFIO_DEVICE_GET_PCI_HOT_RESET_INFO ioctl. At this moment, no cdev path yet, so the vfio_device_cdev_opened() helper always returns false. Reviewed-by: Kevin Tian Tested-by: Terrence Xu Signed-off-by: Yi Liu Reviewed-by: Jason Gunthorpe --- include/linux/vfio.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/linux/vfio.h b/include/linux/vfio.h index 2c137ea94a3e..2a45853773a6 100644 --- a/include/linux/vfio.h +++ b/include/linux/vfio.h @@ -139,6 +139,11 @@ int vfio_iommufd_emulated_attach_ioas(struct vfio_device *vdev, u32 *pt_id); ((int (*)(struct vfio_device *vdev, u32 *pt_id)) NULL) #endif +static inline bool vfio_device_cdev_opened(struct vfio_device *device) +{ + return false; +} + /** * struct vfio_migration_ops - VFIO bus device driver migration callbacks *