From mboxrd@z Thu Jan 1 00:00:00 1970 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 42857C41513 for ; Sat, 12 Aug 2023 05:01:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232185AbjHLFBk (ORCPT ); Sat, 12 Aug 2023 01:01:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43600 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231685AbjHLFBj (ORCPT ); Sat, 12 Aug 2023 01:01:39 -0400 Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.65]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C91881736; Fri, 11 Aug 2023 22:01:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1691816498; x=1723352498; h=message-id:date:mime-version:cc:subject:to:references: from:in-reply-to:content-transfer-encoding; bh=8ESbiLHr+YCgav0uKLzgJWB6fuptDUr8xuFAEutcc9g=; b=eIia5ItIbWR7COp6ipg1ZQK3kKUaSAtgQVwByV6TodkErLoK9i2Zsu0g +w1MyPO8lc7EoPA1FiowUtDJNtte6F0JNuMqxWH3NJkNw3LcEj16zuk0L ahq48G7XRZuPo9cPAyXURGBLC0ON1ZvJ0JBUZ7V6bYcu+RLcUeawojK+i uy5RT1taXg+4yDuB4tT2pSd5g9QYfuj+a46/IYgOyeuhANSwkh8cJtKcK +vMwvHXVkQ7Wtxwrkanxw9TEAW8ueR8nLB4oZrUjhtTe+6d6kgQav3iGy TZolSmW8RXCs+AXptWYxThvEXUJ5AAzxesu45bcPmiTG0VlkkSTYf8Vg/ g==; X-IronPort-AV: E=McAfee;i="6600,9927,10799"; a="375513664" X-IronPort-AV: E=Sophos;i="6.01,167,1684825200"; d="scan'208";a="375513664" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Aug 2023 22:01:38 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10799"; a="767872740" X-IronPort-AV: E=Sophos;i="6.01,167,1684825200"; d="scan'208";a="767872740" Received: from blu2-mobl.ccr.corp.intel.com (HELO [10.254.214.60]) ([10.254.214.60]) by orsmga001-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Aug 2023 22:01:26 -0700 Message-ID: Date: Sat, 12 Aug 2023 13:01:24 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.14.0 Cc: baolu.lu@linux.intel.com, Dmitry Osipenko , Marek Szyprowski , Nicolin Chen , Niklas Schnelle , Steven Price , Thierry Reding Subject: Re: [PATCH v6 15/25] iommufd/selftest: Make the mock iommu driver into a real driver Content-Language: en-US To: Jason Gunthorpe , Andy Gross , Alim Akhtar , Bjorn Andersson , AngeloGioacchino Del Regno , Baolin Wang , Christophe Leroy , Gerald Schaefer , Heiko Stuebner , iommu@lists.linux.dev, Jernej Skrabec , Jonathan Hunter , Joerg Roedel , Kevin Tian , Konrad Dybcio , Krzysztof Kozlowski , linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-s390@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-sunxi@lists.linux.dev, linux-tegra@vger.kernel.org, Russell King , linuxppc-dev@lists.ozlabs.org, Matthias Brugger , Matthew Rosato , Michael Ellerman , Nicholas Piggin , Orson Zhai , Rob Clark , Robin Murphy , Samuel Holland , Thierry Reding , Krishna Reddy , Chen-Yu Tsai , Will Deacon , Yong Wu , Chunyan Zhang References: <15-v6-e8114faedade+425-iommu_all_defdom_jgg@nvidia.com> From: Baolu Lu In-Reply-To: <15-v6-e8114faedade+425-iommu_all_defdom_jgg@nvidia.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-s390@vger.kernel.org On 2023/8/3 8:08, Jason Gunthorpe wrote: > +/* > + * Register an iommu driver against a single bus. This is only used by iommufd > + * selftest to create a mock iommu driver. The caller must provide > + * some memory to hold a notifier_block. > + */ > +int iommu_device_register_bus(struct iommu_device *iommu, > + const struct iommu_ops *ops, struct bus_type *bus, > + struct notifier_block *nb) > +{ > + int err; > + > + iommu->ops = ops; > + nb->notifier_call = iommu_bus_notifier; > + err = bus_register_notifier(bus, nb); > + if (err) > + return err; > + > + spin_lock(&iommu_device_lock); > + list_add_tail(&iommu->list, &iommu_device_list); > + spin_unlock(&iommu_device_lock); > + > + bus->iommu_ops = ops; > + err = bus_iommu_probe(bus); By the way, bus_iommu_probe() has been changed in iommu-next, so it needs to be rebased here. Best regards, baolu