A large portion of the meeting was spent discussing the Zjpm extension and how it should be structured into individual extensions specifying Machine, Supervisor, and User level pointer masking functio

Given that a few ARC members were unable to attend the entire meeting, some discussions were postponed until next week. In particular, Smcntrpmf and S*csrind. There was a one item from those concernin

I haven’t seen Priv spec 1.13 mentioned in the Priv TG email thread in a long time, and neither I nor another architect at my company seem to locate it. Could someone kindly send me a link to the draf

The late-breaking AIA arch bug fix has been finalized, spec updated, and communicated to all the ICs/HCs as AIA heads towards ratification. A meeting is being set up with Ved to discuss some SSLP ques

Now that the Unpriv spec has completed its conversion to adoc (and the Priv conversion is coming soon), discussion started about the work needed to rewrite/integrate/etc. Unpriv extensions that curren

Control-Flow Integrity (CFI) mechanisms - Concerning a shadow stack, the ARC wondered whether, in addition to an instruction that pops from the shadow stack and checks the return address, it was neces

Hi, I have posted the logistics for the upcoming memory isolation/security f2f here: https://docs.google.com/document/d/1JhnVmcb7cQYdnu19arD7FMuZ0GfmcdLhtBSy5I_KojA/edit# Feedback on the agenda is wel

- Zfa: The Floating-Point SIG raised a concern about the merit of the FLI instructions. The ARC briefly notes that these instructions have very low cost and have precedent in existing architectures. W

The ARC committee discussed the following items: Indirect CSRs Pointer masking Zvkng in RVA23 profile CAS fast-track request Memory ownership PMA proposal Zimops and shadow stacks Indirect CSRsThere w

Vector Crypto ------------- * Discussion of DVIT property for shift amounts. AR agreed with TG consensus that these should be DVIT. * Long discussion on merits of including widening left shift (vwsll)

Greetings ! We would like to start a 2-week peer group review for the CBQRI specification. The CBQRI specification defines the register interface to configure Quality of Service (QoS) policies into ca

We would like to restate that this is a peer review, not public. Thanks, George, Ved

Dear all, With the following mail we would like to ask for a 2 week public review on the proposed Shadow Stack and Landing Pads (SSLP) specification. You can find the specification document on GitHub

Hi All, Suppose a hart executes a store to create a new PTE, and then that hart executes a SINVAL.VMA with rs1 and rs2 set so as to affect the address of that PTE. Are subsequent page walks guaranteed

Hi Nick, yes on both - we will plan to end by mid-afternoon on Thursday. Also keeping a zoom call on the 2nd and 3rd day morning (pacific) sounds like a good idea to summarize the previous day and con

Thanks Ravi, I think morning (Pacific time) zoom update calls (one hour?) on the Wednesday and Thursday is probably more social for most people? Than the proposed end of day call (Pacific time). Can w

Started discussion and review of the Sscdeleg and Zicntrpmf fast track extensions, including discussion about how their CSRs are to be used and accessed software. Prior ARC minutes (from two meetings

Started discussion and review of the Sscdeleg and Zicntrpmf fast track extensions, including discussion about how their CSRs are to be used and accessed software. Prior ARC minutes (from two meetings

Hi, Following up from the discussion at the Security HC this week - we discussed the pros of conducting a f2f for the mem isolation topic and there was general consensus to go ahead with it. The days

We discussed a proposal for compressed variants of a subset of the CFI instructions and recommend pursuing it. (This proposal hasn't been written down yet; we will do so soon and will promptly circula