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-rw-r--r--target-arm/helper.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/target-arm/helper.c b/target-arm/helper.c
index 22bf6d3f68..f981569ae2 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -3550,6 +3550,10 @@ void arm_cpu_do_interrupt(CPUState *cs)
addr += env->cp15.vbar_el[1];
}
switch_mode (env, new_mode);
+ /* For exceptions taken to AArch32 we must clear the SS bit in both
+ * PSTATE and in the old-state value we save to SPSR_<mode>, so zero it now.
+ */
+ env->uncached_cpsr &= ~PSTATE_SS;
env->spsr = cpsr_read(env);
/* Clear IT bits. */
env->condexec_bits = 0;