Hi,
* Are EHF and OP-TEE (opteed) designed to work together?
AFAIK this isn't supported. @Jens Wiklandermailto:jens.wiklander@linaro.org please correct if this evolved. You'd need to implement some special logic in the optee SPD to handle the case of Group1NS interrupts (perform a synchronous entry back into OP-TEE for it to perform its housekeeping before returning to the normal world).
* has some "aggregated interrupts" that contain both secure and non-secure sources
By secure interrupt, do you mean Group0 interrupt?
See an earlier thread on this topic:
https://lists.trustedfirmware.org/archives/list/op-tee@lists.trustedfirmware... As I understand it this was somewhat investigated and then abandoned.
Regards, Olivier.
________________________________ From: Brian Neely via TF-A tf-a@lists.trustedfirmware.org Sent: 22 September 2023 22:43 To: tf-a@lists.trustedfirmware.org tf-a@lists.trustedfirmware.org Subject: [TF-A] EHF + OP-TEE
Hello,
Are EHF and OP-TEE (opteed) designed to work together? I'm seeing some strange behavior when NS interrupts are routed to EL3 as FIQs (due to EHF), but before I dig into it further I wanted to confirm if EHF + OP-TEE is a valid combination.
Some background: Our system, which uses OP-TEE, has some "aggregated interrupts" that contain both secure and non-secure sources, for which we wanted to use SDEI to filter and dispatch to Linux (and SDEI requires EHF).
Thanks!
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