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Fri, 23 Apr 2021 06:01:07 -0700 (PDT) Received: from myrica ([2001:1715:4e26:a7e0:116c:c27a:3e7f:5eaf]) by smtp.gmail.com with ESMTPSA id d14sm4537418edc.11.2021.04.23.06.01.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 23 Apr 2021 06:01:06 -0700 (PDT) Date: Fri, 23 Apr 2021 15:00:48 +0200 From: Jean-Philippe Brucker To: Sumit Gupta Subject: Re: [PATCH v14 00/13] SMMUv3 Nested Stage Setup (IOMMU part) Message-ID: References: <1619103878-6664-1-git-send-email-sumitg@nvidia.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1619103878-6664-1-git-send-email-sumitg@nvidia.com> Cc: vdumpa@nvidia.com, wangxingang5@huawei.com, kvm@vger.kernel.org, lushenming@huawei.com, maz@kernel.org, joro@8bytes.org, will@kernel.org, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, vsethi@nvidia.com, alex.williamson@redhat.com, vivek.gautam@arm.com, zhangfei.gao@linaro.org, robin.murphy@arm.com, kvmarm@lists.cs.columbia.edu, eric.auger.pro@gmail.com X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu Hi Sumit, On Thu, Apr 22, 2021 at 08:34:38PM +0530, Sumit Gupta wrote: > Had to revert patch "mm: notify remote TLBs when dirtying a PTE". Did that patch cause any issue, or is it just not needed on your system? It fixes an hypothetical problem with the way ATS is implemented. Maybe I actually observed it on an old software model, I don't remember. Either way it's unlikely to go upstream but I'd like to know if I should drop it from my tree. Thanks, Jean _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm