diff options
Diffstat (limited to 'src/arch/arm/utility.hh')
| -rw-r--r-- | src/arch/arm/utility.hh | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/arch/arm/utility.hh b/src/arch/arm/utility.hh index 6e4e76b75..8efe4ad10 100644 --- a/src/arch/arm/utility.hh +++ b/src/arch/arm/utility.hh @@ -157,6 +157,24 @@ currEL(ThreadContext *tc) return (ExceptionLevel) (uint8_t) cpsr.el; } +/** + * 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); + bool ELIs32(ThreadContext *tc, ExceptionLevel el); bool ELIs64(ThreadContext *tc, ExceptionLevel el); |