From patchwork Fri Jun 2 12:15:11 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yi Liu X-Patchwork-Id: 13265216 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 AD83AC7EE2C for ; Fri, 2 Jun 2023 12:15:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235847AbjFBMPb (ORCPT ); Fri, 2 Jun 2023 08:15:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55600 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235823AbjFBMPY (ORCPT ); Fri, 2 Jun 2023 08:15:24 -0400 Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B30CE1BD; Fri, 2 Jun 2023 05:15:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1685708121; x=1717244121; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=QhHHBjA/tseyShUwUTjciT0ksdUrEBBvQauenFvoKyE=; b=bLB6CtJt4MPVXQjGxu48VOJ8AIqOSeaw+f9NQGv4YzH01cg0iFHUjmJ1 OE/dWNC2pPnHnTXKUUuRlLfvSq6kT41v0Ky/4Wge8jl19OarvxAlIHe9b 1Exv6M6tEKZWJbj18whd4iG4KXLn77mjMTSRS9ubnZTvH331i08DbtzEq DL5eY948OyxJCZXqu91+k7Z2PNgSzAlf50ro9n5X064SC2vI/X+rsNqbM k4mNJm5BjB0jSvaQSe9Q5KjZjqOjEt4ovmD3S5PqqSd77pRi1l9/KZVmU 7vFdejk9i4KzrgDBd7UG+V87OrCrPPfwgCL9fW//SchQ+UwTBlOSuCcgs Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10728"; a="335467484" X-IronPort-AV: E=Sophos;i="6.00,212,1681196400"; d="scan'208";a="335467484" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Jun 2023 05:15:20 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10728"; a="772876467" X-IronPort-AV: E=Sophos;i="6.00,212,1681196400"; d="scan'208";a="772876467" Received: from 984fee00a4c6.jf.intel.com ([10.165.58.231]) by fmsmga008.fm.intel.com with ESMTP; 02 Jun 2023 05:15:20 -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 v7 5/9] iommufd: Add helper to retrieve iommufd_ctx and devid Date: Fri, 2 Jun 2023 05:15:11 -0700 Message-Id: <20230602121515.79374-6-yi.l.liu@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230602121515.79374-1-yi.l.liu@intel.com> References: <20230602121515.79374-1-yi.l.liu@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This is needed by the vfio-pci driver to report affected devices in the hot-reset for a given device. Tested-by: Terrence Xu Signed-off-by: Yi Liu Reviewed-by: Jason Gunthorpe --- drivers/iommu/iommufd/device.c | 12 ++++++++++++ include/linux/iommufd.h | 3 +++ 2 files changed, 15 insertions(+) diff --git a/drivers/iommu/iommufd/device.c b/drivers/iommu/iommufd/device.c index 4571344c8508..96d4281bfa7c 100644 --- a/drivers/iommu/iommufd/device.c +++ b/drivers/iommu/iommufd/device.c @@ -146,6 +146,18 @@ void iommufd_device_unbind(struct iommufd_device *idev) } EXPORT_SYMBOL_NS_GPL(iommufd_device_unbind, IOMMUFD); +struct iommufd_ctx *iommufd_device_to_ictx(struct iommufd_device *idev) +{ + return idev->ictx; +} +EXPORT_SYMBOL_NS_GPL(iommufd_device_to_ictx, IOMMUFD); + +u32 iommufd_device_to_id(struct iommufd_device *idev) +{ + return idev->obj.id; +} +EXPORT_SYMBOL_NS_GPL(iommufd_device_to_id, IOMMUFD); + static int iommufd_device_setup_msi(struct iommufd_device *idev, struct iommufd_hw_pagetable *hwpt, phys_addr_t sw_msi_start) diff --git a/include/linux/iommufd.h b/include/linux/iommufd.h index 33fe57e95e42..33933b0f95fc 100644 --- a/include/linux/iommufd.h +++ b/include/linux/iommufd.h @@ -25,6 +25,9 @@ void iommufd_device_unbind(struct iommufd_device *idev); int iommufd_device_attach(struct iommufd_device *idev, u32 *pt_id); void iommufd_device_detach(struct iommufd_device *idev); +struct iommufd_ctx *iommufd_device_to_ictx(struct iommufd_device *idev); +u32 iommufd_device_to_id(struct iommufd_device *idev); + struct iommufd_access_ops { u8 needs_pin_pages : 1; void (*unmap)(void *data, unsigned long iova, unsigned long length);