[TF-A] documentation - secure interrupt handling in EL3 for arm gic v2

Hi ,

There is a contradiction present in TF-A documentation whether secure interrupts can be handled in EL3 for arm gic v2 case .

1. Referring https://trustedfirmware-a.readthedocs.io/en/latest/design/interrupt-framewor... It says secure interrupts can't be handled in EL3 . Refer statement : "In Arm GICv2, all secure interrupts are assumed to be handled in Secure-EL1. They can be delivered to Secure-EL1 via EL3 but they cannot be handled in EL3."

2. Referring https://trustedfirmware-a.readthedocs.io/en/latest/components/platform-inter... It says secure interrupts can be handled in EL3 , When GICV2_G0_FOR_EL3 is 1 . Refer below statements : For interrupt type INTR_TYPE_EL3: When GICV2_G0_FOR_EL3 is 0, it returns false, indicating no support for EL3 interrupts. When GICV2_G0_FOR_EL3 is 1, it returns true, indicating support for EL3 interrupts.

can this be clarified ?

Regards Amit