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([2a09:80c0:192:0:5dac:bf3d:c41:c3e7]) by smtp.gmail.com with ESMTPSA id fj12-20020a05600c0c8c00b003ef67848a21sm5130037wmb.13.2023.04.06.05.07.59 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 06 Apr 2023 05:07:59 -0700 (PDT) Message-ID: <46f68930-fdfc-db3d-5f28-521ff76e170a@redhat.com> Date: Thu, 6 Apr 2023 14:07:58 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.9.1 Subject: Re: [PATCH v3 0/6] Expose GPU memory as coherently CPU accessible Content-Language: en-US To: ankita@nvidia.com, jgg@nvidia.com, alex.williamson@redhat.com, naoya.horiguchi@nec.com, maz@kernel.org, oliver.upton@linux.dev Cc: aniketa@nvidia.com, cjia@nvidia.com, kwankhede@nvidia.com, targupta@nvidia.com, vsethi@nvidia.com, acurrid@nvidia.com, apopple@nvidia.com, jhubbard@nvidia.com, danw@nvidia.com, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org References: <20230405180134.16932-1-ankita@nvidia.com> From: David Hildenbrand Organization: Red Hat In-Reply-To: <20230405180134.16932-1-ankita@nvidia.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org [...] > This goes along with a qemu series to provides the necessary > implementation of the Grace Hopper Superchip firmware specification so > that the guest operating system can see the correct ACPI modeling for > the coherent GPU device. > https://github.com/qemu/qemu/compare/master...ankita-nv:qemu:dev-ankit/cohmem-0330 > > Applied and tested over v6.3-rc4. > I briefly skimmed over the series, the patch subject prefixes are a bit misleading IMHO and could be improved: > Ankit Agrawal (6): > kvm: determine memory type from VMA this is arch64 specific kvm (kvm/aarch64: ?) > vfio/nvgpu: expose GPU device memory as BAR1 > mm: handle poisoning of pfn without struct pages mm/memory-failure: > mm: Add poison error check in fixup_user_fault() for mapped PFN That's both MM and core-KVM, maybe worth splitting up. > mm: Change ghes code to allow poison of non-struct PFN That's drivers/acpi/apei code, not core-mm code. > vfio/nvgpu: register device memory for poison handling -- Thanks, David / dhildenb