Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

[Spike] Instruction 'fence.i' shall not be available if extension Zifencei is not enabled. #2579

Open
zchamski opened this issue Jan 24, 2025 · 0 comments
Open

[Spike] Instruction 'fence.i' shall not be available if extension Zifencei is not enabled. #2579

zchamski opened this issue Jan 24, 2025 · 0 comments

Comments

@zchamski
Copy link
Contributor

Spin-off of openhwgroup/cva6#2734: instruction fence.i is always available, even if extension Zifencei is not enabled in the ISA string. This must be changed to obey the optional nature of Zifencei.

Tasks:

  • Ensure that the proper flag for optional presence of Zifencei exists (implement one if not.)
  • Add appropriate guard to fence.i implementation.
  • Update ISA strings where appropriate.
  • Test.
zchamski added a commit to ThalesSiliconSecurity/core-v-verif that referenced this issue Jan 24, 2025
@zchamski
[Spike] Fix openhwgroup#2579: Require explicit Zifencei to enable fen…
1a9d279 
…ce.i instruction.
zchamski added a commit to ThalesSiliconSecurity/core-v-verif that referenced this issue Jan 27, 2025
@zchamski
[Spike] Add vendor patch for issue CVV openhwgroup#2579.
fbc106d
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees
No one assigned
Labels
None yet
Projects
None yet
Milestone
No milestone
Development

No branches or pull requests
1 participant
@zchamski