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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 56C6CC04FE0 for ; Mon, 14 Aug 2023 02:21:38 +0000 (UTC) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=ji9I6umR; dkim-atps=neutral Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4RPJ746qs4z3c2f for ; Mon, 14 Aug 2023 12:21:36 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=ji9I6umR; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=linux.intel.com (client-ip=134.134.136.24; helo=mgamail.intel.com; envelope-from=baolu.lu@linux.intel.com; receiver=lists.ozlabs.org) Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.24]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4RPJ650gkSz2xjw for ; Mon, 14 Aug 2023 12:20:43 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1691979645; x=1723515645; h=message-id:date:mime-version:cc:subject:to:references: from:in-reply-to:content-transfer-encoding; bh=BKroavBK6EnBprtuPd4BTHpO6ajK8Y/4HL8VYFF7pWY=; b=ji9I6umRPGUnkS9Yz9o8yi8SeZS7yqjW588EMkni5kHWIS0pMlxu6I+e e4s/5s3YmuQm/mRWWmHRc70TWKXHudYikXVNGx1U+wcL4DYbt9LZa9gq0 sIBlj4GYrYuk0LOnLTsCfYw/C6cxgS16dYuzNa+eFalO9Tl1yxAEiP4si fgQd6PKBj2VNt4WGlQLMx1pWcdauXviHEszQ0lXsc0x7ektU0aR/CQc5/ 8ELqCPFVUPFgVxwK13q0QTXc5NVoMAID0nKO4oTRWZWo3Girnd9Rajcax FedZR7vo0/4rVcSoFynNivn85XITPpnScARvfiuWXmm/3oZMl8brKkyL3 Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10801"; a="374714066" X-IronPort-AV: E=Sophos;i="6.01,171,1684825200"; d="scan'208";a="374714066" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Aug 2023 19:20:39 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10801"; a="768282809" X-IronPort-AV: E=Sophos;i="6.01,171,1684825200"; d="scan'208";a="768282809" Received: from blu2-mobl.ccr.corp.intel.com (HELO [10.255.29.49]) ([10.255.29.49]) by orsmga001-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Aug 2023 19:20:28 -0700 Message-ID: <98f23aee-6861-3aa6-d50d-d712985a09c7@linux.intel.com> Date: Mon, 14 Aug 2023 10:20:25 +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 Subject: Re: [PATCH v6 04/25] iommu: Add IOMMU_DOMAIN_PLATFORM for S390 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: <4-v6-e8114faedade+425-iommu_all_defdom_jgg@nvidia.com> From: Baolu Lu In-Reply-To: <4-v6-e8114faedade+425-iommu_all_defdom_jgg@nvidia.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Thierry Reding , Niklas Schnelle , Steven Price , Nicolin Chen , Dmitry Osipenko , baolu.lu@linux.intel.com, Marek Szyprowski Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On 2023/8/3 8:07, Jason Gunthorpe wrote: > The PLATFORM domain will be set as the default domain and attached as > normal during probe. The driver will ignore the initial attach from a NULL > domain to the PLATFORM domain. > > After this, the PLATFORM domain's attach_dev will be called whenever we > detach from an UNMANAGED domain (eg for VFIO). This is the same time the > original design would have called op->detach_dev(). > > This is temporary until the S390 dma-iommu.c conversion is merged. > > Tested-by: Heiko Stuebner > Tested-by: Niklas Schnelle > Signed-off-by: Jason Gunthorpe > --- > drivers/iommu/s390-iommu.c | 21 +++++++++++++++++++-- > 1 file changed, 19 insertions(+), 2 deletions(-) Reviewed-by: Lu Baolu Best regards, baolu