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target-arm: Don't take interrupts targeting lower ELs

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Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Greg Bellows <greg.bellows@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1411718914-6608-6-git-send-email-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Edgar E. Iglesias 2014-09-29 18:48:49 +01:00 committed by Peter Maydell
parent 043b7f8d12
commit dfafd09088
1 changed files with 7 additions and 0 deletions
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7
target-arm/cpu.h
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@ -1175,6 +1175,13 @@ bool write_cpustate_to_list(ARMCPU *cpu);
static inline bool arm_excp_unmasked(CPUState *cs, unsigned int excp_idx)
{
CPUARMState *env = cs->env_ptr;
unsigned int cur_el = arm_current_pl(env);
unsigned int target_el = arm_excp_target_el(cs, excp_idx);
/* Don't take exceptions if they target a lower EL. */
if (cur_el > target_el) {
return false;
}
switch (excp_idx) {
case EXCP_FIQ: