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Date

Disclosures

 RISC-V Disclosures Video
RVI_Disclosures_Female_Short.mp4

Participants

 Meeting Participants

Name

Affiliation

Agenda

  • review and approve previous minutes
  • Discussion on the need for a speculation barrier. In the temporal fence TG there was some discussion why a temporal fence was proposed and why not speculation barriers. It was noted that the two approaches are different, and the temporal fence, while difficult to test and certify, has been accepted as a requirement and needs to continue. The charter was approved by that TG. However, temporal fencing may be an addition or alternative with value, and may also be easier to test and certify. Does this group see the need for a speculation barrier. Which member will commit to participate in this discussion. Is there consensus on the best way forward ? This is a continuation of the discussion led by Vedvyas Shanbhogue from last year.
    • do we set up an adhoc group to discuss, continue in security HC ?
    • Vedvyas Shanbhogue presented a proposal for speculation barrier extension, with the difference from timing fences.
    • Does the security HC want to propose a speculation barrier TG to the TSC ?
  • request for folks to review the updated security model - the post-arc-review branch.
  • Request for folks to review the TEE whitepaper, mostly written by Ravi Sahita . The plan is to share with the TSC, and potentially publish. It can be found at:

Doc: https://docs.google.com/document/d/1PjqAawMT6F-lSiEhtYO4KK8rGqoNayKrboCJ6BYt6TM/edit?tab=t.0#heading=h.olop86cuom6q

 Slides: https://docs.google.com/presentation/d/15IaM-nxvwc40wUpUDAZrsi_69-zm28_Bl2sIbuTjgfE/edit#slide=id.p2

  • AOB

Presentations

Title

Presenter

File

1

transient execution and speculation barriers

ved

https://github.com/riscv-admin/uarch-side-channels/blob/main/minutes/18_Meeting_20241116/Transient%20Execution%20and%20Speculation%20Barriers.pdf

2

Votes

 Vote

Quorum Status: >9 voting companies present so quorum met.
Vote Record

  • Agenda Item or Motion: Approval of the previous minutes

  • Motion Made By: paul elliott

  • Motion Seconded By: roberto avanzi

Voting Results:

  • In Favor: unanimous

  • Opposed: 0

  • Abstentions: 0

Outcome: passed

Additional Notes:

  • Agenda Item or Motion: The Security HC proposes the creation of a speculation barrier TG

  • Motion Made By: ronan lashermes

  • Motion Seconded By: nick kossifidis

Voting Results:

  • In Favor: unanimous

  • Opposed:

  • Abstentions:

Outcome: passes.

Additional Notes: Vedvyas Shanbhogue volunteered to drive the PoW creation. as per Ravi Sahita the TG should be limited to speculation barriers to avoid ‘boiling the ocean’

Notes & Action Items

  •  

Adjournment

  • Motion to Adjourn Made By: ravi

  • Seconded By: kris

  • Time Adjourned: 5.04 GMT

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