linux-kernel - [ANNOUNCE] PUCK Notes - 2023.07.19

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Message-ID: <20230724163426.13283-1-seanjc@google.com>
Date:   Mon, 24 Jul 2023 09:34:26 -0700
From:   Sean Christopherson <seanjc@...gle.com>
To:     kvm@...r.kernel.org
Cc:     Sean Christopherson <seanjc@...gle.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        linux-kernel@...r.kernel.org
Subject: [ANNOUNCE] PUCK Notes - 2023.07.19 - LPC and guest_memfd

I forgot to hit "record", so unfortunately there's no video evidence this time
around :-(

LPC:
 - Format will utilize flexible timeslots; tentatively planning on ~3 "big"
   slots of ~40 minutes each, and ~6 "small" slots of 10-15 minutes each.
 - Schedule will be announced around September 15th (though that may get pushed
   backed to October 1st).
 - Schedule is flexibile up until the conference, e.g. if code is merged between
   September 15th and early November and obviates the need for a discussion.

guest_memfd:
 Topic Branch:
   - Work will be coordinated through a dedicated topic branch (likely
     kvm-x86/guest_memfd).
   - Mostly stable branch; plan is to not rebase it for at least the next month
   - Fixes (use Fixes: tag!!!) will be applied on top and squashed when the
     branch is rebased.
   - TBD will post a series for broader review in a month or so once
     development has settled down.

 TODO:
  - Documentation [Sean?]
  - Changelogs [Sean]
  - Non-filemap implementation [Paolo]
  - Hugepage tests (verify KVM actually installs hugepages as expected) 
  - Memory failure tests (e.g. synthetic #MC injection)
  - Get Input from IOMMU / VFIO [Paolo]

 Opens:
  - .release_folio and .invalidate_folio versus .evict_inode [Mike]
  - Fully anonymous inode vs. proper filesystem [Sean / Paolo]
  - HugeTLB (or something similar) support [Future]
  - Intrahost migration support [Google GCE]
  - NUMA support [ TBD - implement fbind() ]
  - Memory Accounting [Sean - should Just Work, keyword should ]
  - Page Table Accounting - Should we? [Nikunj]

Recording:
/facepalm