diff options
| author | Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru> | 2015-09-17 19:24:56 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-11-06 10:16:03 +0100 |
| commit | 8a354bd935a800dd2d98ac8f30707e2912c80ae6 (patch) | |
| tree | fa6b917c403d7485260df80fc7f83ea449f2a00c /hw/core | |
| parent | df281b80b9ecba65d85795aa738c29e5b94d5ef1 (diff) | |
replay: ptimer
This patch adds deterministic replay for hardware periodic countdown timers.
ptimer uses bottom halves layer to execute such an asynchronous callback.
We put this callback into the replay queue instead of bottom halves one.
When checkpoint is met by main loop thread, the replay queue is processed
and callback is executed. Binding callback moment to one of the checkpoints
makes it deterministic.
Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Message-Id: <20150917162456.8676.83366.stgit@PASHA-ISP.def.inno>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Diffstat (limited to 'hw/core')
| -rw-r--r-- | hw/core/ptimer.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/hw/core/ptimer.c b/hw/core/ptimer.c index 8437bd6e8b..edf077cfd0 100644 --- a/hw/core/ptimer.c +++ b/hw/core/ptimer.c @@ -9,6 +9,7 @@ #include "qemu/timer.h" #include "hw/ptimer.h" #include "qemu/host-utils.h" +#include "sysemu/replay.h" struct ptimer_state { @@ -27,7 +28,7 @@ struct ptimer_state static void ptimer_trigger(ptimer_state *s) { if (s->bh) { - qemu_bh_schedule(s->bh); + replay_bh_schedule_event(s->bh); } } |