- User Since
- Sep 28 2018, 3:39 PM (33 w, 4 d)
Ah, You are right. Having taken a look at it again, yes, the SP-> SPM communication is register based and this spm_response_add() is invoked by SPM to push to a buffer within EL3 (its not a shared buffer between different ELs). I suspect the shared buffer primitives were written with shared buffer scenario in mind and the current prototype implementation does not optimize it for the case when the buffer is within EL3.
Who is the lockless reader for spm_response_add() and spm_response_get()?
Wed, May 8
Example comment 3