aboutsummaryrefslogtreecommitdiff
path: root/target-arm/op_helper.c
diff options
context:
space:
mode:
Diffstat (limited to 'target-arm/op_helper.c')
-rw-r--r--target-arm/op_helper.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/target-arm/op_helper.c b/target-arm/op_helper.c
index 79e7d10055..0ea4ed4bae 100644
--- a/target-arm/op_helper.c
+++ b/target-arm/op_helper.c
@@ -252,6 +252,13 @@ void HELPER(wfi)(CPUARMState *env)
{
CPUState *cs = CPU(arm_env_get_cpu(env));
+ if (cpu_has_work(cs)) {
+ /* Don't bother to go into our "low power state" if
+ * we would just wake up immediately.
+ */
+ return;
+ }
+
cs->exception_index = EXCP_HLT;
cs->halted = 1;
cpu_loop_exit(cs);