diff options
Diffstat (limited to 'hw/vfio')
| -rw-r--r-- | hw/vfio/migration.c | 17 | ||||
| -rw-r--r-- | hw/vfio/trace-events | 3 |
2 files changed, 20 insertions, 0 deletions
diff --git a/hw/vfio/migration.c b/hw/vfio/migration.c index 992dc3b102..01aa11013e 100644 --- a/hw/vfio/migration.c +++ b/hw/vfio/migration.c @@ -370,6 +370,10 @@ static ssize_t vfio_save_block(QEMUFile *f, VFIOMigration *migration) * please refer to the Linux kernel VFIO uAPI. */ if (errno == ENOMSG) { + if (!migration->event_precopy_empty_hit) { + trace_vfio_save_block_precopy_empty_hit(migration->vbasedev->name); + migration->event_precopy_empty_hit = true; + } return 0; } @@ -379,6 +383,9 @@ static ssize_t vfio_save_block(QEMUFile *f, VFIOMigration *migration) return 0; } + /* Non-empty read: re-arm the trace event */ + migration->event_precopy_empty_hit = false; + qemu_put_be64(f, VFIO_MIG_FLAG_DEV_DATA_STATE); qemu_put_be64(f, data_size); qemu_put_buffer(f, migration->data_buffer, data_size); @@ -472,6 +479,9 @@ static int vfio_save_setup(QEMUFile *f, void *opaque, Error **errp) return -ENOMEM; } + migration->event_save_iterate_started = false; + migration->event_precopy_empty_hit = false; + if (vfio_precopy_supported(vbasedev)) { switch (migration->device_state) { case VFIO_DEVICE_STATE_RUNNING: @@ -602,6 +612,11 @@ static int vfio_save_iterate(QEMUFile *f, void *opaque) VFIOMigration *migration = vbasedev->migration; ssize_t data_size; + if (!migration->event_save_iterate_started) { + trace_vfio_save_iterate_start(vbasedev->name); + migration->event_save_iterate_started = true; + } + data_size = vfio_save_block(f, migration); if (data_size < 0) { return data_size; @@ -630,6 +645,8 @@ static int vfio_save_complete_precopy(QEMUFile *f, void *opaque) int ret; Error *local_err = NULL; + trace_vfio_save_complete_precopy_start(vbasedev->name); + /* We reach here with device state STOP or STOP_COPY only */ ret = vfio_migration_set_state(vbasedev, VFIO_DEVICE_STATE_STOP_COPY, VFIO_DEVICE_STATE_STOP, &local_err); diff --git a/hw/vfio/trace-events b/hw/vfio/trace-events index 29789e8d27..cab1cf1de0 100644 --- a/hw/vfio/trace-events +++ b/hw/vfio/trace-events @@ -157,10 +157,13 @@ vfio_migration_set_device_state(const char *name, const char *state) " (%s) stat vfio_migration_set_state(const char *name, const char *new_state, const char *recover_state) " (%s) new state %s, recover state %s" vfio_migration_state_notifier(const char *name, int state) " (%s) state %d" vfio_save_block(const char *name, int data_size) " (%s) data_size %d" +vfio_save_block_precopy_empty_hit(const char *name) " (%s)" vfio_save_cleanup(const char *name) " (%s)" vfio_save_complete_precopy(const char *name, int ret) " (%s) ret %d" +vfio_save_complete_precopy_start(const char *name) " (%s)" vfio_save_device_config_state(const char *name) " (%s)" vfio_save_iterate(const char *name, uint64_t precopy_init_size, uint64_t precopy_dirty_size) " (%s) precopy initial size %"PRIu64" precopy dirty size %"PRIu64 +vfio_save_iterate_start(const char *name) " (%s)" vfio_save_setup(const char *name, uint64_t data_buffer_size) " (%s) data buffer size %"PRIu64 vfio_state_pending_estimate(const char *name, uint64_t precopy, uint64_t postcopy, uint64_t precopy_init_size, uint64_t precopy_dirty_size) " (%s) precopy %"PRIu64" postcopy %"PRIu64" precopy initial size %"PRIu64" precopy dirty size %"PRIu64 vfio_state_pending_exact(const char *name, uint64_t precopy, uint64_t postcopy, uint64_t stopcopy_size, uint64_t precopy_init_size, uint64_t precopy_dirty_size) " (%s) precopy %"PRIu64" postcopy %"PRIu64" stopcopy size %"PRIu64" precopy initial size %"PRIu64" precopy dirty size %"PRIu64 |