[Qemu-devel] [PATCH v2 5/5] openrisc: Only kick cpu on timeout, not on update

[Stafford Horne <shorne@gmail.com>]

Previously we were kicking the cpu on every update.  This caused
problems noticeable in SMP configurations where one CPU got pinned
continuously servicing timer exceptions.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Stafford Horne <shorne@gmail.com>
---
 hw/openrisc/cputimer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/openrisc/cputimer.c b/hw/openrisc/cputimer.c
index 4c5415ff75..850f88761c 100644
--- a/hw/openrisc/cputimer.c
+++ b/hw/openrisc/cputimer.c
@@ -78,7 +78,6 @@ void cpu_openrisc_timer_update(OpenRISCCPU *cpu)
     }
     next = now + (uint64_t)wait * TIMER_PERIOD;
     timer_mod(cpu->env.timer, next);
-    qemu_cpu_kick(CPU(cpu));
 }
 
 void cpu_openrisc_count_start(OpenRISCCPU *cpu)
@@ -120,6 +119,7 @@ static void openrisc_timer_cb(void *opaque)
     }
 
     cpu_openrisc_timer_update(cpu);
+    qemu_cpu_kick(CPU(cpu));
 }
 
 static const VMStateDescription vmstate_or1k_timer = {
-- 
2.13.6