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The RISC-V specification process is governed by the Ratification Policy and more concisely articulated in the Specification Lifecycle and Milestone Definitions presentation.

This page serves as the starting point for understanding the status of specifications currently being developed by RISC-V.  This status is best represented as progress toward the key Specification Milestones (Plan, Freeze, and Ratification-ready) which are obtained sequentially.  Specific status for the relevant status columns is detailed in the Status Key section below.

In-process specifications are grouped below into two tables based on whether they impact the RISC-V ISA (In-process ISA Specifications) or not (In-process Non-ISA Specifications).  Items should have links to their respective specification repo (), Ratification Plan() if not a Fast-track item, and an Acceptance Criteria Status checklist (). 

Status of active votes by TSC and Committee Chairs can be found on the RISC-V Vote Status wiki page.

Completed specifications are tracked at the bottom of the page.

This dashboard does NOT intend to showed details status (that's available in the status checklist for the specification, ), but rather the general status in the journey to ratification. 

NOTE: This page is maintained by the RISC-V TPMs. To get updates to this page or for questions, contact help@riscv.org.

In-process ISA Specifications

Ratification Package 

: Project repo
: Plan doc
: Status chklist

extensions included


Specification State****Fast TrackPriv / UnprivCommittee (Owner)Task GroupPlan Milestone Target DateFreeze Milestone Target DateRatification Milestone Target DatePlan
Milestone Next Step*
Freeze
Milestone Next Step**
Ratification
Milestone Next Step***
Last UpdatedNotesIn RVA2023 profile as mandatory or supported optional

Advanced Interrupt Architecture (AIA)

  

Smaia, SsaiaPublic Review StartedNPPriv HC
(John Hauser, Anup Patel)
AIA
Q4'22

Q1'23

complete

complete

public review complete

  • Blanket waivers
  • Public review ends Dec. 24
y
Zca, Zcb, Zcd, Zcf, Zcmp, ZcmtFrozenNU

Unpriv HC

(Tariq Kurd)
Code Size Reduction
Q4'22Q1'23grandfathered

complete

send out for public review

SAIL/ACT Waivers

ABI issues being worked

n

Conditional Ops

ZicondopsNewYU

Unpriv HC
(Ved)

N/A
Q1'23





Debug

  


New

N

PPriv HC
(Tim Newsom)
Debug TG
Q2'23
review by chairs

acceptance criteria complete

start


n
SmclicPlan CompleteNPPriv HC
(Dan Smathers)
Fast Interrupts
Q1'23
N/A

spec development - stable

start?
n
SvaduPlan  CompleteYPPriv HC
(Ved)
N/A
Q4'22Q1'23N/A

acceptance criteria complete


start



Zicntr, ZihpmPublic Review StartedYUUnpriv HC
(Earl Killian)
N/A
Q4'22
N/A

committee chair approval

public review complete 

Review ends Dec. 23y
"May Be Ops" (for CFI, etc.) ZimopsStableYUUnpriv HC
(Andrew Waterman)
N/A
Q1'23
N/A

AR approval

start

08/22. need github specn
ZihintntlPlan  CompleteYPPriv HC
(Andrew Waterman)
N/A
Q1'23
N/Aacceptance criteria completestart

Update needed.y
Zbpbo, Zpn, Zpsfoperand, P
NewNUUnpriv HC
(Kevin Chen)
Packed SIMD
?
start

start


start


n
ZjidStableNPPriv HC
(Martin Maas)
I/D Consistency
Q1'23
N/A - GrandfatheredAR approvalstart

Spec in slide form, needs to be translated into write-up.?
ZjpmStableNPPriv HC
(Martin Maas)
Pointer Masking
Q4'22
N/A - GrandfatheredAR approvalstart

Waivers requested for SAIL and ACT.?

Profiles

  

Shcounterenw, Shvstvala, Shtvala, Shvstvecd, Shvsatpa, Shgatpa, Ssstateen, Ssptead, Sstvala, Sstvecd, Sstvecv, Ssu64xl, Svbare, Za128rs, Za64rs, Ziccamoa, Ziccif, Zicclsm, Ziccrse, Zic64bPublic Review StartedNUTSC
(Krste/Greg)
Profiles TG
Q4'22


complete

complete

 

public review complete

Public review ends 12/9.

y
RV32E/RV64EPublic Review CompleteYUUnpriv HC
(krste)
N/A
Q3'22Q4'22N/AcompleteTSC approval


n
SmrnmiPlan  CompleteYPPriv HC
(Krste/Greg)
N/A
Q1'23
N/Aacceptance criteria completestart


n
Misc. basic Scalar FPZfaPlan  CompleteYUUnpriv HC
(Andrew Waterman)
N/A
Q4'22Q1'23N/Aacceptance criteria completestart


y

Shadow Stacks and Landing Pads

ZisslpcfiPlan  CompleteN U + P

Unpriv HC + Priv HC

(George, Ved)

SS-LP-CFI Q4'22Q3'23Q3'23Completestartstart


n
SspmpNewNPSecurity HC
(Dong Du)
S-Mode Physical Memory ProtectionQ4'22TBD
N/AN/AN/A


n

Total Store Ordering

ZtsoTSC ApprovedYUUnpriv HC
(Earl Killian)
N/A
Q3'22Q4'22N/A

complete

BOD approval


?

Vector Crypto

  

Zvkb, Zvkg, Zvknha, Zvknhb, Zvkns,  Zvksed, ZvkshStableNU

Unpriv HC
(Ken Dockser)

Cryptographic Extensions
Q4'22Q1'23CompleteAR Approvalstart

SAIL & ACT Waivery

Vector Crypto - all-rounds AES

ZvknfStableNU

Unpriv HC
(Ken Dockser)

Cryptographic Extensions
TBD
CompleteAR Approvalstart

SAIL & ACT Waivern

Vector IEEE FP16 Min Support, Arithmetic

Zvfh, ZvfhminStableYUUnpriv HC
(Krste)
N/A
Q4'22
N/A

freeze

start

Blanket waivery

In-process Non-ISA Specifications

Specification

: Project repo
: Plan doc
: Status chklist

Specification State****Committee (Owner)Task GroupPlan Milestone Target DateFreeze Milestone Target DateRatification Milestone Target DatePlan
Milestone next step*
Freeze
Milestone next step**

Ratification
Milestone next step

***

Last UpdatedNotes

ACPI

  

NewPrivileged Software HC
(Sunil VL)


Q2'22
review by chairs



Application Processor-Trusted Execution Environment (AP-TEE)

  

NewSecurity HC
(Suresh Sugumar, Ravi Sahita)
AP-TEE


review by chairs


Architectural Test Requirements

  

New

ISA  Infrastructure HC
(Allen Baum)

Architecture Test SIG??


review by chairs



IOMMU

  

Plan  CompleteSOC Infrastructure HC
(Ved Shanbhogue, Perrine Peresse)
IOMMU
Q1'23
completeAR approval


IOPMP


New

Security HC
(Paul Ku)

IOPMP
Q1'23
review by chairs


Nexus Trace (control)

  

NewSOC Infrastructure HC
(Robert Chylla)
Nexus Trace


review by chairs


Platforms

  

New




review by chairs



PLIC

  

Public Review CompletePrivileged Software HC
(Abner Chang)


Q3'22Q4'22complete

complete

committee chair approval


No waivers

Security Model

  

NewSecurity HC
(Suresh Sugumar, Ravi Sahita)
Security Model


plan review by chairs


Unified Discovery (Config)

  

NewPrivileged Software HC
(Irma Flores-Mendoza
Unified Discovery
Q3'22
plan review by chairs

 


Watchdog Timer

  

New

Privileged Software HC
(Greg Favor, Anup Patel)





plan review by chairs



Cache and Memory Controller QoS Register Interface (CMQRI)New

SOC Infrastructure HC (Eric Shiu, Ambika Krishnamoorthy)

CMQRI


plan review by chairs

 


Status Key

The following steps and associated next sequential steps for the milestones listed in the tables above may be parallelized at times, but are most simply thought of as a sequential set.  All previous steps are done. They are as follows:

* Plan Milestone next Steps:

  1. start
  2. review by chairs
  3. complete (nothing else to do)

** Freeze Milestone next step:

  1. start
  2. spec development - stable
  3. AR approval (ISA/SW AR)
  4. acceptance criteria complete (including waivers, ar approval)
  5. committee chair approval
  6. freeze
  7. complete (nothing else to do)

*** Ratification Milestone next step (don't start until freeze is complete):

  1. start
  2. send out for public review
  3. public review complete
  4. acceptance criteria complete 
  5. committee chair approval
  6. TSC approval
  7. BOD approval
  8. ratified
  9. complete (nothing else to do)

**** Specification State values:

  1. New
  2. Plan Complete
  3. Stable
  4. Frozen
  5. Public Review Started
  6. Public Review Complete
  7. TSC Approved
  8. Ratified


Ratified

2022

ISA Specifications

Ratification Package (Extension names)

: Project repo
: Plan doc
: Status chklist

Extension(s)Fast TrackPriv / UnprivCommittee (Owner)Task GroupPlan Milestone Target DateFreeze Milestone Target DateRatification Milestone Target DatePlan
Milestone Status*
Freeze
Milestone Status**
Ratification
Milestone Status***
Last UpdatedNotesIn RVA2023 profile as mandatory or supported optional

YUUnpriv HC
(Allen Baum)


Q1'22Q2'22N/AFreeze Complete

 Ratification Complete


Unified Discovery Waiver
ZawrsYU

Unpriv HC
(Ved Shanbhogue)

N/A
Q2'22Q3'22N/A

complete

complete

11/7/22


y


Non-ISA Specifications

Specification

: Project repo
: Plan doc
: Status chklist

Committee
(Owner)
Task GroupPlan Milestone Target DateFreeze Milestone Target DateRatification Milestone Target DatePlan
Milestone Status*
Freeze
Milestone Status**
Ratification
Milestone Status***
Last UpdatedNotes

Efficient Trace (E-Trace)

  

SOC Infrastructure HC
(Gajinder Panesar)




Q2'22Plan CompleteFreeze Complete

Ratification Complete


  • No waivers
  • Needs copyright update

psABI

  

Privileged Software HC
(Kito Cheng, Jessica Clarke)

psABI
Q2'22Q3'22complete

complete

complete

11/7/22

No waivers

Supervisor Binary Interface (SBI)

  

Privileged Software HC
(Atish Patra)




Q2'22Plan CompleteFreeze Complete

Ratification Complete


No waivers

UEFI Protocol 

  

Privileged Software HC
(Sunil VL)



Q2'22Plan CompleteFreeze Complete

Ratification Complete


No waivers

2021

Ratification PackageFast TrackPriv UnprivExtension NamesOwnerArch ReviewStatus ChecklistPublic Review
Vector

N

UV, Zve32x, Zve32f, Zve64x, Zve64f, Zve64dKrsteCompleteCompleteY
FP in INT regsNUZfinxTariqCompleteCompleteY
Half Width FPYU

Zfh, Zfhmin

AndrewCompleteCompleteY
ePMPNPSmepmpNickCompleteCompleteY
Crypto ScalarNUZbkb, Zbkc, Zbkx, Zknd, Zkne, Zknh, Zksed, Zksh, Zkn, Zks, Zkt, Zk, ZkrBenCompleteCompleteY
Priv 1.12NP

Sm1-12, Ss1-12, Sv57

GregCompleteCompleteY
CMO baseNPZicbom, Zicbop, ZicbozDavidKCompleteCompleteY
hypervisorNPHJohnHCompleteCompleteY
state enableYPSmstateenJohnHCompleteCompleteY

time cmp

YPSstcGregCompleteCompleteY
Count overflow & FilteringYPSscofmpfGregCompleteCompleteY
Fast TLB invalidationNPSvinval

Dan

CompleteCompleteY
NAPOT pagesNPSvnapotDanCompleteCompleteY
Page-based memory typesNPSvpbmtDanCompleteCompleteY
Pause HintYUZihintpauseGregCompleteCompleteY
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