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([2a01:e0a:280:24f0:9db0:474c:ff43:9f5c]) by smtp.gmail.com with ESMTPSA id h9-20020a5d4309000000b0034c78001f6asm10301225wrq.109.2024.04.30.07.13.06 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 30 Apr 2024 07:13:07 -0700 (PDT) Message-ID: <9e15abd9-f824-4f11-9532-b0dcb7b521dd@redhat.com> Date: Tue, 30 Apr 2024 16:13:03 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH intel_iommu 0/7] FLTS for VT-d To: CLEMENT MATHIEU--DRIF , "qemu-devel@nongnu.org" Cc: "jasowang@redhat.com" , Zhenzhong Duan , "Tian, Kevin" , Liu Yi L , Joao Martins , Peter Xu References: <20240422155236.129179-1-clement.mathieu--drif@eviden.com> Content-Language: en-US, fr From: =?UTF-8?Q?C=C3=A9dric_Le_Goater?= In-Reply-To: <20240422155236.129179-1-clement.mathieu--drif@eviden.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=170.10.129.124; envelope-from=clg@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.987, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Hello, Adding a few people in Cc: who are familiar with the Intel IOMMU. Thanks, C. On 4/22/24 17:52, CLEMENT MATHIEU--DRIF wrote: > This series is the first of a list that add support for SVM in the Intel IOMMU. > > Here, we implement support for first-stage translation in VT-d. > The PASID-based IOTLB invalidation is also added in this series as it is a > requirement of FLTS. > > The last patch introduces the 'flts' option to enable the feature from > the command line. > Once enabled, several drivers of the Linux kernel use this feature. > > This work is based on the VT-d specification version 4.1 (March 2023) > > Here is a link to a GitHub repository where you can find the following elements : > - Qemu with all the patches for SVM > - ATS > - PRI > - PASID based IOTLB invalidation > - Device IOTLB invalidations > - First-stage translations > - Requests with already translated addresses > - A demo device > - A simple driver for the demo device > - A userspace program (for testing and demonstration purposes) > > https://github.com/BullSequana/Qemu-in-guest-SVM-demo > > Clément Mathieu--Drif (7): > intel_iommu: fix FRCD construction macro. > intel_iommu: rename slpte to pte before adding FLTS > intel_iommu: make types match > intel_iommu: add support for first-stage translation > intel_iommu: extract device IOTLB invalidation logic > intel_iommu: add PASID-based IOTLB invalidation > intel_iommu: add a CLI option to enable FLTS > > hw/i386/intel_iommu.c | 655 ++++++++++++++++++++++++++------- > hw/i386/intel_iommu_internal.h | 114 ++++-- > include/hw/i386/intel_iommu.h | 3 +- > 3 files changed, 609 insertions(+), 163 deletions(-) >