Re: [PATCH 02/18] target/arm: Use arm_current_el for simple exceptions

[Peter Maydell]

On Mon, 23 May 2022 at 21:49, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> For these cases, the syndrome does not depend on the
> origin or target EL, so we can simply defer selection
> of the target EL to raise_exception.

The commit message says "defer to raise_exception()", but
that would mean passing 0 as the cur_or_target_el, which
mostly these changes aren't doing.

Instead it looks like what we're relying on is that
if arm_current_el() != 0 then exception_target_el() == arm_current_el(),
and if arm_current_el() is 0 then raise_exception() will
call exception_target_el() for us. Which is true, but not
really what the commit message is saying.

-- PMM