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 FjGfT0jN 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000012, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 4/16/2025 7:58 PM, David Hildenbrand wrote: > Hi everybody, > > our next guest_memfd upstream call is scheduled for Thursday, > 2025-04-17 at 8:00 - 9:00am (GMT-07:00) Pacific Time - Vancouver. > > We'll be using the following Google meet: > http://meet.google.com/wxp-wtju-jzw > > The meeting notes can be found at [1], where we also link recordings and > collect current guest_memfd upstream proposals. If you want an google > calendar invitation that also covers all future meetings, just write me > a mail. > > > If nothing else comes up, let's talk about the next steps to get basic > mmap support [2] ready for upstream, to prepare for actual in-place > conversion, direct-map removal and much more. > > In particular, let's talk about what "basic mmap support" is, and what > we can use it for without actual in-place conversion: IIUC "only shared > memory in guest_memfd" use cases and some cases of software-protected > VMs can use it. > > Also, let's talk about the relationship/expectations between guest_memfd > and the user (mmap) address when it comes to KVM memory slots that have > a guest_memfd that supports "shared" memory. > > > 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. > > [1] > https://docs.google.com/document/d/1M6766BzdY1Lhk7LiR5IqVR8B8mG3cr- > cxTxOrAosPOk/edit?usp=sharing > [2] https://lore.kernel.org/all/20250318161823.4005529-1- > tabba@google.com/T/#u > Hi David, If we have time, I'd like to discuss about my v4 posting of shared device assignment support (https://lore.kernel.org/qemu-devel/20250407074939.18657-1-chenyi.qiang@intel.com/) which introduces a new abstract parent class of RamDiscardManager, and a new priority listener to apply to in-place conversion. Hope to get some suggestion or confirmation if I'm in the correct direction. Thanks Chenyi