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([2a01:e0a:59e:9d80:527b:9dff:feef:3874]) by smtp.gmail.com with ESMTPSA id l10sm1663709wmq.42.2021.09.27.23.25.33 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 27 Sep 2021 23:25:35 -0700 (PDT) Reply-To: eric.auger@redhat.com Subject: Re: [PATCH v15 00/12] SMMUv3 Nested Stage Setup (IOMMU part) To: Krishna Reddy , "eric.auger.pro@gmail.com" , "iommu@lists.linux-foundation.org" , "linux-kernel@vger.kernel.org" , "kvm@vger.kernel.org" , "kvmarm@lists.cs.columbia.edu" , "will@kernel.org" , "maz@kernel.org" , "robin.murphy@arm.com" , "joro@8bytes.org" , "alex.williamson@redhat.com" , "tn@semihalf.com" , "zhukeqian1@huawei.com" Cc: "jacob.jun.pan@linux.intel.com" , "yi.l.liu@intel.com" , "wangxingang5@huawei.com" , "jean-philippe@linaro.org" , "zhangfei.gao@linaro.org" , "zhangfei.gao@gmail.com" , "vivek.gautam@arm.com" , "shameerali.kolothum.thodi@huawei.com" , "yuzenghui@huawei.com" , "nicoleotsuka@gmail.com" , "lushenming@huawei.com" , Vikram Sethi , "chenxiang66@hisilicon.com" , "jiangkunkun@huawei.com" References: <20210411111228.14386-1-eric.auger@redhat.com> From: Eric Auger Message-ID: Date: Tue, 28 Sep 2021 08:25:33 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.10.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Content-Language: en-US Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Krishna, On 9/27/21 11:17 PM, Krishna Reddy wrote: > Hi Eric, >> This is based on Jean-Philippe's >> [PATCH v14 00/10] iommu: I/O page faults for SMMUv3 >> https://www.spinics.net/lists/arm-kernel/msg886518.html >> (including the patches that were not pulled for 5.13) >> > Jean's patches have been merged to v5.14. > Do you anticipate IOMMU/VFIO part patches getting into upstream kernel soon? I am going to respin the smmu part rebased on v5.15. As for the VFIO part, this needs to be totally redesigned based on /dev/iommu (see [RFC 00/20] Introduce /dev/iommu for userspace I/O address space management). I will provide some updated kernel and qemu branches for testing purpose only. Thanks Eric > > -KR >