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[2003:cb:c739:8e00:7a46:1b8c:8b13:d3d]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-432b05e5f77sm211872355e9.43.2024.11.12.04.30.07 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 12 Nov 2024 04:30:07 -0800 (PST) Message-ID: <6f2bfac2-d9e7-4e4a-9298-7accded16b4f@redhat.com> Date: Tue, 12 Nov 2024 13:30:06 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: David Hildenbrand Subject: [Invitation] bi-weekly guest_memfd upstream call on 2024-11-14 Autocrypt: addr=david@redhat.com; keydata= xsFNBFXLn5EBEAC+zYvAFJxCBY9Tr1xZgcESmxVNI/0ffzE/ZQOiHJl6mGkmA1R7/uUpiCjJ dBrn+lhhOYjjNefFQou6478faXE6o2AhmebqT4KiQoUQFV4R7y1KMEKoSyy8hQaK1umALTdL QZLQMzNE74ap+GDK0wnacPQFpcG1AE9RMq3aeErY5tujekBS32jfC/7AnH7I0v1v1TbbK3Gp XNeiN4QroO+5qaSr0ID2sz5jtBLRb15RMre27E1ImpaIv2Jw8NJgW0k/D1RyKCwaTsgRdwuK Kx/Y91XuSBdz0uOyU/S8kM1+ag0wvsGlpBVxRR/xw/E8M7TEwuCZQArqqTCmkG6HGcXFT0V9 PXFNNgV5jXMQRwU0O/ztJIQqsE5LsUomE//bLwzj9IVsaQpKDqW6TAPjcdBDPLHvriq7kGjt WhVhdl0qEYB8lkBEU7V2Yb+SYhmhpDrti9Fq1EsmhiHSkxJcGREoMK/63r9WLZYI3+4W2rAc UucZa4OT27U5ZISjNg3Ev0rxU5UH2/pT4wJCfxwocmqaRr6UYmrtZmND89X0KigoFD/XSeVv jwBRNjPAubK9/k5NoRrYqztM9W6sJqrH8+UWZ1Idd/DdmogJh0gNC0+N42Za9yBRURfIdKSb B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABzSREYXZpZCBIaWxk ZW5icmFuZCA8ZGF2aWRAcmVkaGF0LmNvbT7CwZgEEwEIAEICGwMGCwkIBwMCBhUIAgkKCwQW AgMBAh4BAheAAhkBFiEEG9nKrXNcTDpGDfzKTd4Q9wD/g1oFAl8Ox4kFCRKpKXgACgkQTd4Q 9wD/g1oHcA//a6Tj7SBNjFNM1iNhWUo1lxAja0lpSodSnB2g4FCZ4R61SBR4l/psBL73xktp rDHrx4aSpwkRP6Epu6mLvhlfjmkRG4OynJ5HG1gfv7RJJfnUdUM1z5kdS8JBrOhMJS2c/gPf wv1TGRq2XdMPnfY2o0CxRqpcLkx4vBODvJGl2mQyJF/gPepdDfcT8/PY9BJ7FL6Hrq1gnAo4 3Iv9qV0JiT2wmZciNyYQhmA1V6dyTRiQ4YAc31zOo2IM+xisPzeSHgw3ONY/XhYvfZ9r7W1l pNQdc2G+o4Di9NPFHQQhDw3YTRR1opJaTlRDzxYxzU6ZnUUBghxt9cwUWTpfCktkMZiPSDGd KgQBjnweV2jw9UOTxjb4LXqDjmSNkjDdQUOU69jGMUXgihvo4zhYcMX8F5gWdRtMR7DzW/YE BgVcyxNkMIXoY1aYj6npHYiNQesQlqjU6azjbH70/SXKM5tNRplgW8TNprMDuntdvV9wNkFs 9TyM02V5aWxFfI42+aivc4KEw69SE9KXwC7FSf5wXzuTot97N9Phj/Z3+jx443jo2NR34XgF 89cct7wJMjOF7bBefo0fPPZQuIma0Zym71cP61OP/i11ahNye6HGKfxGCOcs5wW9kRQEk8P9 M/k2wt3mt/fCQnuP/mWutNPt95w9wSsUyATLmtNrwccz63XOwU0EVcufkQEQAOfX3n0g0fZz Bgm/S2zF/kxQKCEKP8ID+Vz8sy2GpDvveBq4H2Y34XWsT1zLJdvqPI4af4ZSMxuerWjXbVWb T6d4odQIG0fKx4F8NccDqbgHeZRNajXeeJ3R7gAzvWvQNLz4piHrO/B4tf8svmRBL0ZB5P5A 2uhdwLU3NZuK22zpNn4is87BPWF8HhY0L5fafgDMOqnf4guJVJPYNPhUFzXUbPqOKOkL8ojk CXxkOFHAbjstSK5Ca3fKquY3rdX3DNo+EL7FvAiw1mUtS+5GeYE+RMnDCsVFm/C7kY8c2d0G NWkB9pJM5+mnIoFNxy7YBcldYATVeOHoY4LyaUWNnAvFYWp08dHWfZo9WCiJMuTfgtH9tc75 7QanMVdPt6fDK8UUXIBLQ2TWr/sQKE9xtFuEmoQGlE1l6bGaDnnMLcYu+Asp3kDT0w4zYGsx 5r6XQVRH4+5N6eHZiaeYtFOujp5n+pjBaQK7wUUjDilPQ5QMzIuCL4YjVoylWiBNknvQWBXS lQCWmavOT9sttGQXdPCC5ynI+1ymZC1ORZKANLnRAb0NH/UCzcsstw2TAkFnMEbo9Zu9w7Kv AxBQXWeXhJI9XQssfrf4Gusdqx8nPEpfOqCtbbwJMATbHyqLt7/oz/5deGuwxgb65pWIzufa N7eop7uh+6bezi+rugUI+w6DABEBAAHCwXwEGAEIACYCGwwWIQQb2cqtc1xMOkYN/MpN3hD3 AP+DWgUCXw7HsgUJEqkpoQAKCRBN3hD3AP+DWrrpD/4qS3dyVRxDcDHIlmguXjC1Q5tZTwNB boaBTPHSy/Nksu0eY7x6HfQJ3xajVH32Ms6t1trDQmPx2iP5+7iDsb7OKAb5eOS8h+BEBDeq 3ecsQDv0fFJOA9ag5O3LLNk+3x3q7e0uo06XMaY7UHS341ozXUUI7wC7iKfoUTv03iO9El5f XpNMx/YrIMduZ2+nd9Di7o5+KIwlb2mAB9sTNHdMrXesX8eBL6T9b+MZJk+mZuPxKNVfEQMQ a5SxUEADIPQTPNvBewdeI80yeOCrN+Zzwy/Mrx9EPeu59Y5vSJOx/z6OUImD/GhX7Xvkt3kq Er5KTrJz3++B6SH9pum9PuoE/k+nntJkNMmQpR4MCBaV/J9gIOPGodDKnjdng+mXliF3Ptu6 3oxc2RCyGzTlxyMwuc2U5Q7KtUNTdDe8T0uE+9b8BLMVQDDfJjqY0VVqSUwImzTDLX9S4g/8 kC4HRcclk8hpyhY2jKGluZO0awwTIMgVEzmTyBphDg/Gx7dZU1Xf8HFuE+UZ5UDHDTnwgv7E th6RC9+WrhDNspZ9fJjKWRbveQgUFCpe1sa77LAw+XFrKmBHXp9ZVIe90RMe2tRL06BGiRZr jPrnvUsUUsjRoRNJjKKA/REq+sAnhkNPPZ/NNMjaZ5b8Tovi8C0tmxiCHaQYqj7G2rgnT0kt WNyWQQ== Organization: Red Hat To: linux-coco@lists.linux.dev, "linux-mm@kvack.org" , KVM X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: z5Hzh4BGPi6PswHrNpSvtEjdSjBfnet4OCkPUz5wOvk_1731414609 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Queue-Id: F3206A0011 X-Rspamd-Server: rspam11 X-Stat-Signature: 9w6jxptrgw8ie3zpo1498eut8udiangq X-HE-Tag: 1731414581-148562 X-HE-Meta: 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 Y7TX4nV7 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.029149, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hi, the next guest_memfd upstream call will happen this Thursday, 2024-11-14 at at 9:00 - 10:00am (GMT-08:00) Pacific Time - Vancouver. We'll be using the following Google meet: http://meet.google.com/wxp-wtju-jzw The meeting notes are linked from the google calendar invitation. If you want an invitation that also covers all future meetings, just write me a mail. In this meeting we'll discuss: * fbind() and NUMA mempolicy for guest_memfd * Persisting guest_memfd across reboot / guest_memfs * guest_memfd use cases for a PFN range allocator And we'll continue our discussion on: * Challenges with supporting huge pages * Challenges with shared vs. private conversion * guest_memfd as a "library" To put something to discuss onto the agenda, reply to this mail or add them to the "Topics/questions for next meeting(s)" section in the meeting notes as a comment. -- Current upstream proposals floating around: * mmap support + shared vs. private [1] * preparations [2] for huge/gigantic page support [3] * guest_memfd as a "library" to make it independent of KVM [4] * fbind() and NUMA mempolicy for guest_memfd [5] * Hooking into folio_put() [6] [1] https://lkml.kernel.org/r/20241010085930.1546800-1-tabba@google.com [2] https://lkml.kernel.org/r/cover.1728684491.git.ackerleytng@google.com [3] https://lkml.kernel.org/r/cover.1728684491.git.ackerleytng@google.com [4] https://lkml.kernel.org/r/20240829-guest-memfd-lib-v2-0-b9afc1ff3656@quicinc.com [5] https://lore.kernel.org/all/20241105164549.154700-1-shivankg@amd.com/T/#u [6] https://lkml.kernel.org/r/20241108162040.159038-1-tabba@google.com -- Cheers, David / dhildenb