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 C7BD5ECAAD8 for ; Wed, 21 Sep 2022 08:55:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229729AbiIUIzX (ORCPT ); Wed, 21 Sep 2022 04:55:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42640 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229970AbiIUIzK (ORCPT ); Wed, 21 Sep 2022 04:55:10 -0400 Received: from mail-wm1-x32e.google.com (mail-wm1-x32e.google.com [IPv6:2a00:1450:4864:20::32e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 997AD3868F for ; Wed, 21 Sep 2022 01:55:08 -0700 (PDT) Received: by mail-wm1-x32e.google.com with SMTP id az6so3921197wmb.4 for ; Wed, 21 Sep 2022 01:55:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date; bh=NMm6vbupuNg3e8G1erinu7XgiIOmdNdtykV6wWBx/V8=; b=cs5Dvxfm7fd7aaUwKHNDAnKWcNrqMyWvSpCFhYmNjRwKQjf697cP12ef2JVhzS+nTr rBiEPfFCAvK18V0b4TPU93sWl3nBICTtuO2MuXRVpLAsvrnPMrSMT8utfj6qRBivTxti BXRo7n7yiwy1VFEU65sNSMFb9wbJX0Y01wSWLKT5xxq4/13Ub6Q0C+MSyK+vNliqzKv7 7DJIhCBeCbjUg+pZttjuEgYoPhQn5piUM0+uqu6ez9uuEzMnz+dnjzErRDjuyGOk/BYS UkhbQnQFMY8EjTuZOsOAEbzscpTOQfKIqXeSfDZd9sFya7VbVqAP+h8BvB+DFZ+Idka/ wnnA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date; bh=NMm6vbupuNg3e8G1erinu7XgiIOmdNdtykV6wWBx/V8=; b=eRmTrApaHQVUPvyQabuVX4NznlF/inEfFXFpHyJjCxYVi7byrgPxyWE2hZOxcSPzPy 4hsSgpMKWTI+CFZogG8p9wfwblmlF9P6DC1a2z4aASD36XbyZGZJw6LjMQ+1OgT3fAnQ HQC/DD+u8MkoL6ALdaZWs6CBW4zVg+/sOKw/ewDtc9YVui7Ft9MDtIGKsYPrW71mGJzH hwhqGXYUT8rcMXAWUNSwoFN8W9AmPaoEy02Ve6FEUblBsyBCZz6qparyq7XSqQPJmTrf fkpZXSAUoK0PdYTFxVYdZ+vycdUBZVwMmrETalcEJgN/yNnzYNvgeTysQGF+jCA4QWAi JAPw== X-Gm-Message-State: ACrzQf1CBMsU7ePccUChIeQ4CG9He0ytqgwC+/tvmiHktfX+Sr6X+C2k j311yoop5YWLpU/DXewS8Or80Q== X-Google-Smtp-Source: AMsMyM5v4ccQB/sVn2S/zJDFsH4keJ/VCqNp428gK8IV32RalM87u6d3xbyo/Rp+qs75y4SGFW5eBA== X-Received: by 2002:a1c:202:0:b0:3a8:4197:eec0 with SMTP id 2-20020a1c0202000000b003a84197eec0mr5125375wmc.83.1663750506995; Wed, 21 Sep 2022 01:55:06 -0700 (PDT) Received: from myrica (cpc92880-cmbg19-2-0-cust679.5-4.cable.virginm.net. [82.27.106.168]) by smtp.gmail.com with ESMTPSA id p14-20020a5d48ce000000b0022afbd02c69sm1949060wrs.56.2022.09.21.01.55.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 21 Sep 2022 01:55:06 -0700 (PDT) Date: Wed, 21 Sep 2022 09:55:01 +0100 From: Jean-Philippe Brucker To: Nicolin Chen Cc: joro@8bytes.org, suravee.suthikulpanit@amd.com, will@kernel.org, robin.murphy@arm.com, robdclark@gmail.com, dwmw2@infradead.org, baolu.lu@linux.intel.com, agross@kernel.org, bjorn.andersson@linaro.org, matthias.bgg@gmail.com, orsonzhai@gmail.com, baolin.wang@linux.alibaba.com, zhang.lyra@gmail.com, sricharan@codeaurora.org, jgg@nvidia.com, kevin.tian@intel.com, konrad.dybcio@somainline.org, yong.wu@mediatek.com, thierry.reding@gmail.com, vdumpa@nvidia.com, jonathanh@nvidia.com, tglx@linutronix.de, shameerali.kolothum.thodi@huawei.com, christophe.jaillet@wanadoo.fr, thunder.leizhen@huawei.com, quic_saipraka@quicinc.com, jon@solid-run.com, yangyingliang@huawei.com, iommu@lists.linux.dev, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-tegra@vger.kernel.org, virtualization@lists.linux-foundation.org Subject: Re: [PATCH v4 0/6] Define EINVAL as device/domain incompatibility Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org On Wed, Sep 21, 2022 at 01:22:31AM -0700, Nicolin Chen wrote: > This series is to replace the previous EMEDIUMTYPE patch in a VFIO series: > https://lore.kernel.org/kvm/Yxnt9uQTmbqul5lf@8bytes.org/ > > The purpose is to regulate all existing ->attach_dev callback functions to > use EINVAL exclusively for an incompatibility error between a device and a > domain. This allows VFIO and IOMMUFD to detect such a soft error, and then > try a different domain with the same device. [...] > drivers/iommu/amd/iommu.c | 12 +---- > drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 11 +--- > drivers/iommu/arm/arm-smmu/arm-smmu.c | 3 -- > drivers/iommu/arm/arm-smmu/qcom_iommu.c | 7 +-- > drivers/iommu/fsl_pamu.c | 2 +- > drivers/iommu/fsl_pamu_domain.c | 4 +- > drivers/iommu/intel/iommu.c | 10 ++-- > drivers/iommu/intel/pasid.c | 6 ++- > drivers/iommu/iommu.c | 22 ++++++++ > drivers/iommu/ipmmu-vmsa.c | 2 - > drivers/iommu/msm_iommu.c | 59 +++++++++++---------- > drivers/iommu/mtk_iommu.c | 4 +- > drivers/iommu/omap-iommu.c | 6 +-- > drivers/iommu/sprd-iommu.c | 4 +- > drivers/iommu/tegra-gart.c | 2 +- > drivers/iommu/virtio-iommu.c | 7 ++- For virtio-iommu: Reviewed-by: Jean-Philippe Brucker > include/linux/iommu.h | 12 +++++ > 17 files changed, 90 insertions(+), 83 deletions(-) > > -- > 2.17.1 >