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Whene we raise a synchronous exception, if HCR_EL2.TGE is set then exceptions targeting NS EL1 must be redirected to EL2. Implement this in raise_exception() -- all synchronous exceptions go through this function. (Asynchronous exceptions go via arm_cpu_exec_interrupt(), which already honours HCR_EL2.TGE when it determines the target EL in arm_phys_excp_target_el().) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180724115950.17316-4-peter.maydell@linaro.org