From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoffer Dall <cdall@linaro.org>
Subject: Re: How to trap a real interrupt to EL2 ?
Date: Tue, 4 Jul 2017 13:12:12 +0200
Message-ID: <20170704111212.GQ4066@cbox>
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To: Raz <raziebe@gmail.com>
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On Mon, Jul 03, 2017 at 09:56:06PM +0000, Raz wrote:
> Hey
> 
> I am trying to trap any real IRQ  into EL2.
> I created a thin hypervisor with mmu enabled and set hcr_el2 as follows:
> hcr_el2= HCR_IMO  | HCR_VM | HCR_RW.
> 
> 
> Now it seems that once I set hcr_el2 to the above value and then exit from
> EL2 I immediately jump back to EL2.

You could read the ESR_EL2 and figure out what caused the exception...

-Christoffer