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-rw-r--r--target/arm/op_helper.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/target/arm/op_helper.c b/target/arm/op_helper.c
index c4bd668..97c8c9e 100644
--- a/target/arm/op_helper.c
+++ b/target/arm/op_helper.c
@@ -28,6 +28,21 @@
#define SIGNBIT (uint32_t)0x80000000
#define SIGNBIT64 ((uint64_t)1 << 63)
+int exception_target_el(CPUARMState *env)
+{
+ int target_el = MAX(1, arm_current_el(env));
+
+ /*
+ * No such thing as secure EL1 if EL3 is aarch32,
+ * so update the target EL to EL3 in this case.
+ */
+ if (arm_is_secure(env) && !arm_el_is_aa64(env, 3) && target_el == 1) {
+ target_el = 3;
+ }
+
+ return target_el;
+}
+
void raise_exception(CPUARMState *env, uint32_t excp,
uint32_t syndrome, uint32_t target_el)
{