159a160,177
> /**
> * This function checks whether selected EL provided as an argument
> * is using the AArch32 ISA. This information might be unavailable
> * at the current EL status: it hence returns a pair of boolean values:
> * a first boolean, true if information is available (known),
> * and a second one, true if EL is using AArch32, false for AArch64.
> *
> * @param tc The thread context.
> * @param el The target exception level.
> * @retval known is FALSE for EL0 if the current Exception level
> * is not EL0 and EL1 is using AArch64, since it cannot
> * determine the state of EL0; TRUE otherwise.
> * @retval aarch32 is TRUE if the specified Exception level is using AArch32;
> * FALSE otherwise.
> */
> std::pair<bool, bool>
> ELUsingAArch32K(ThreadContext *tc, ExceptionLevel el);
>