Re: Extending the number of PMP entries
This is not needed. We can easily probe number of PMP registers using illegal instruction traps. Look at latest OpenSBI sources.
From: tech-privileged@... <tech-privileged@...> On Behalf Of Abner Chang
Sent: 25 May 2020 08:22
To: Andrew Waterman <andrew@...>; Tariq Kurd <tariq.kurd@...>
Subject: Re: [RISC-V] [tech-privileged] Extending the number of PMP entries
Just writing to confirm that there is no information regards to the # of PMP entries supported by hart mentioned in privilege spec . If my understanding is correct, then this information is good to go to RISC-V configurations structure.
On Behalf Of Andrew Waterman
I've made a pull request to extend the number of PMP entries, and have attached the compiled PDF for convenience. Feedback and error detection are appreciated: the fact that there used to be 16 PMP entries manifested in several places in the document.
On Fri, May 22, 2020 at 12:30 AM Tariq Kurd <tariq.kurd@...> wrote: