diff options
Diffstat (limited to 'target-arm/op_helper.c')
-rw-r--r-- | target-arm/op_helper.c | 7 |
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); |