Hi,

If I am not mistaking, the fiq handler should be opteed_sel1_interrupt_handler which will forward the interrupt to S-EL1.

R,

Jelle

________________________________________ From: OP-TEE op-tee-bounces@lists.trustedfirmware.org on behalf of Peng Fan via OP-TEE op-tee@lists.trustedfirmware.org Sent: Tuesday, March 16, 2021 11:08 To: op-tee@lists.trustedfirmware.org; Jens Wiklander; Joakim Bech Subject: EHF + OPTEE on ARM64

Hi,

In bl31/ehf.c, there are following two lines, per my understanding, when cpu is in secure world, the non-secure interrupt as FIQ(GICv3) will be directly catched by EL3, not S-EL1 /* Route EL3 interrupts when in Secure and Non-secure. */ set_interrupt_rm_flag(flags, NON_SECURE); set_interrupt_rm_flag(flags, SECURE);

So this will conflict with OP-TEE, because OP-TEE needs catch NS-interrupt as FIQ in S-EL1 world.

Am I understand correct?

Any ideas how we could address this to make EHF + OPTEE run together?

Thanks Peng.