On 07/02/2025 22:26, Deepak Gupta wrote:

Hi Clement,

Thanks for looking at it. Inline
On Thu, Feb 06, 2025 at 02:49:09PM +0100, Clément Léger wrote:

quoted

On 05/02/2025 02:22, Deepak Gupta wrote:

quoted

zicfiss / zicfilp introduces a new exception to priv isa `software check
exception` with cause code = 18. This patch implements software check
exception.

Hey Deepak,

While not directly related to this patch, is the exception 18 delegation
documented in the SBI doc ? I mean, should we specify that it is always
delegated when implementing FWFT LANDING_PAD/SHADOW_STACK ?

I don't think it's document in SBI spec anywhere. Should it be ?

That's a good question ! I don't know the process to document that part
of the SBI but that would probably be nice to document it anyway I
guess. Atish may know what to do with that.

Clément

In code, opensbi delegates the exception (SW_CHECK)
https://github.com/riscv-software-src/opensbi/
commit/110524441a827e026db3547ed03c5723b9c9e211

quoted

Thanks,

Clément

quoted