diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/sysemu/replay.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/sysemu/replay.h b/include/sysemu/replay.h index 401de12..3ced6bc 100644 --- a/include/sysemu/replay.h +++ b/include/sysemu/replay.h @@ -48,6 +48,19 @@ extern ReplayMode replay_mode; /* Name of the initial VM snapshot */ extern char *replay_snapshot; +/* Replay locking + * + * The locks are needed to protect the shared structures and log file + * when doing record/replay. They also are the main sync-point between + * the main-loop thread and the vCPU thread. This was a role + * previously filled by the BQL which has been busy trying to reduce + * its impact across the code. This ensures blocks of events stay + * sequential and reproducible. + */ + +void replay_mutex_lock(void); +void replay_mutex_unlock(void); + /* Replay process control functions */ /*! Enables recording or saving event log with specified parameters */ |