From: Sergey Fedorov <serge.f...@gmail.com> Implement debug exception routing according to ARM ARM D2.3.1 Pseudocode description of routing debug exceptions.
Signed-off-by: Sergey Fedorov <serge.f...@gmail.com> Reviewed-by: Peter Maydell <peter.mayd...@linaro.org> Signed-off-by: Peter Maydell <peter.mayd...@linaro.org> --- target-arm/cpu.h | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/target-arm/cpu.h b/target-arm/cpu.h index e555122..3daa7f5 100644 --- a/target-arm/cpu.h +++ b/target-arm/cpu.h @@ -1702,7 +1702,22 @@ static inline int cpu_mmu_index(CPUARMState *env, bool ifetch) */ static inline int arm_debug_target_el(CPUARMState *env) { - return 1; + bool secure = arm_is_secure(env); + bool route_to_el2 = false; + + if (arm_feature(env, ARM_FEATURE_EL2) && !secure) { + route_to_el2 = env->cp15.hcr_el2 & HCR_TGE || + env->cp15.mdcr_el2 & (1 << 8); + } + + if (route_to_el2) { + return 2; + } else if (arm_feature(env, ARM_FEATURE_EL3) && + !arm_el_is_aa64(env, 3) && secure) { + return 3; + } else { + return 1; + } } static inline bool aa64_generate_debug_exceptions(CPUARMState *env) -- 1.9.1