2026-03-04 TSC Meeting
Date
Mar 4, 2026
Disclosures
Participants
Agenda
Membership Update - Jeff (5 min)
Jingang Duan (Individual member) assumes voting for the Technology HC from Nambi Ju
Haoyan Jia replaces Siqi Zhao for Alibaba
Zoran Radovic replaces David Weaver for Akeana
TSC Participation Status - Jeff (5 min)
TSC Participation Status (members only) page
If you cannot access the above page, please request access by sending an email to help@riscv.org.
Minutes Approval - Jeff (5 min)
Proposal of Work
Presentations
Votes
None
Notes & Action Items
Meeting recording and transcript: link
Meeting Summary
Membership Update
Jeff highlighted recent membership changes, including Zheng Duan becoming an individual member after Intel's departure and the update of Alibaba's representatives, with Haoyan Zha assuming the role. Jeff also mentioned that David Weaver's retirement was progressing well, and Zoran Radovic would step in as the Akeana TSC representative. Jeff also introduced Haoyan as the Alibaba representative.
TSC Voting Requirements Update
Jeff briefly reviewed the new TSC participation requirements and introduced a wiki page tracking voting participation. He explained the process for warning and probation if members fall below the voting threshold.
Atomic I/O Enqueue Instruction Proposal of Work
The discussion focused on the Atomic I/O instruction proposal, presented by Guo from the Alibaba Damo Academy Shanti Processor team. The discussion covered the background and motivation for defining an ISA extension to enable RISC-V support for atomic I/O instructions, including the need for commands to enqueue work to device-shared queues. Guo outlined objectives for the task group, including investigating data provision strategies, defining instruction semantics and encoding, evaluating interconnect transaction models, and considering virtualization, security, and ecosystem compatibility. The group aims to develop a proof of concept implementation and will focus on defining the atomic I/O enqueue instructions, with support from sponsors.
Automotive SIG Charter Review
The discussion focused on reviewing a proposal of work and charter for the Automotive SIG. Greg confirmed that the feedback from an earlier draft had been addressed, and the group agreed to proceed to member review. Thomas presented an overview of the automotive SIG's activities, highlighting their focus on in-vehicle compute and their role as a technical entry point for industry players. The group discussed various topics they had worked on, including extensions to RISC-V and automotive tool interfaces. Jeff announced that he would create a charter approval vote for the TSC as the final step for the automotive SIG.
JITed and Dynamic Languages SIG Charter Review
The discussion focused on reviewing the charter for the JITT & Dynamic Languages SIG, presented by Martin. He explained that this SIG evolved from the J Extension Group and would focus on architectural support for languages with dynamic code generation, such as Java and Python. Martin outlined key areas of interest, including garbage collection, code modification, and speculation checks. The group aims to conduct gap analyses, create benchmarks, and support other technical groups in improving RISC-V's support for managed runtimes. A discussion arose regarding the governance hierarchy of this SIG, with Philipp suggesting a closer tie-in to the Apps & Tools HC. Martin agreed to have a follow-up discussion with Philipp to determine the best structure. The next step is for the TSC to vote on the charter in the coming week.
Event Trace TG Charter Review
Bruce presented an overview of the Event Trace feature, which extends existing instruction tracing by adding front-end hardware filtering capabilities. He explained that the feature, which has been implemented in silicon at Sci5 and included in the Hi5 Premier P550 Development Board, allows for selective tracing of events such as interrupts, exceptions, function calls, and returns, along with the ability to record program counters and external signals. The task group's objectives include defining feature sets, developing event types for trace packets, and extending capabilities like hardware filtering and performance counter integration. Bruce noted that the group has been meeting since November to formalize the feature for the RISC-V environment, collaborating with other trace groups and infrastructure teams.
Floating Point SIG Status
The TSC meeting focused on reviewing the charter for a work group and discussing the status and future plans of the floating-point SIG. Nicolas presented an update on the SIG's activities, highlighting their small size, monthly meetings, and role in monitoring floating-point arithmetic activities both inside and outside of RISC-V. The SIG plans to collaborate with the Crypto SIG on data-independent latency floating-point operations in 2026, organize presentations by external speakers, and summarize their experience for RISC-V. Nicolas also mentioned the intention to increase attendance and invite more participants to present topics related to floating-point arithmetic.
The Technical Steering Committee (TSC) discussed the future of a SIG focused on floating-point arithmetic. Jeff inquired about any concerns regarding the SIG's continuation, with Greg clarifying that there was no formal process requiring the SIG to complete in two years. The TSC considered options such as allowing the SIG to continue, re-chartering it, or disbanding it if unproductive. Nicolas and Philipp expressed support for the SIG's current state, acknowledging its utility for future technical discussions. The TSC decided to allow the SIG to continue and agreed to revisit the decision in a year.
Crypto SIG Status
The Crypto SIG chair, Markku-Juhani, discussed their ongoing cryptographic work, including monitoring developments and addressing needs in cryptographic algorithms. He explained that the group, which transformed from a TG to a SIG less than a year ago, continues with weekly meetings and has two task groups focusing on high assurance and post-quantum crypto. The group is considering new work items, such as memory encryption and potential support for Chinese crypto standards. Jeff inquired about concerns regarding the group's continuation, and Greg clarified that TSC member approval is needed rather than just chair approval. Rafael mentioned a new policy requiring technical committees to review their business plans after 6 months of approval, though the exact process remains unclear.
Wrap-up Discussion
The TSC meeting discussed the implementation of a new policy requiring 90 days of participation to maintain voting rights, which will begin affecting members in April. The group decided to defer two SIG presentations to the next regular TSC meeting rather than holding an overflow meeting the following week. The meeting also addressed the need to clarify the definition of "business plan" in existing policy, with Greg and Jeff agreeing to work on this clarification. The conversation ended with a reminder about the upcoming change to Daylight Saving Time, which will affect meeting times for non-US participants.
Detailed Minutes
Atomic I/O Enqueue Instruction Proposal of Work
Presentation attached in table above (link)
Draft has been informally reviewed by ARC and feedback has been included
No additional discussion.
Chairs approved for Member Review
Automotive SIG Charter Review
Presentation attached in table above (link)
No questions
Next step: Vote will be started to formalize the approval of the Charter by TSC.
JITed and Dynamic Languages SIG Charter Review
Should the governance be in Unpriv IC or Apps & Tools HC?
This group is focused on the novel hardware support and architecture and thus under the Unpriv IC. Managed Runtime SIG became the Toolchain SIG in Apps & Tools HC. Scalar Efficiency is similar and underAI: Krste, Martin, Philipp to discuss if any changes are needed to the Governing Committee (presently Unpriv IC).
Is the translation of binaries in scope, e.g. Rosetta?
The enablement mechanisms would be in scope, but not the wholeNext step: Vote will be started to formalize the approval of the Charter by TSC.
Event Trace TG Charter Review
No questions
Next step: Vote will be started to formalize the approval of the Charter by TSC.
Floating Point SIG Status
No SIG-specific questions.
No concerns were expressed with continuation of the SIG.
Crypto SIG Status
No SIG-specific questions.
No concerns were expressed with continuation of the SIG.
Adjournment
Motion to Adjourn Made By:
Seconded By:
Time Adjourned:
