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| author | Avihai Horon <avihaih@nvidia.com> | 2024-05-15 16:21:38 +0300 |
|---|---|---|
| committer | Cédric Le Goater <clg@redhat.com> | 2024-05-16 16:59:20 +0200 |
| commit | 11ebce2a5544cacab31e8ff169c6f0ceef37f4e8 (patch) | |
| tree | 50d6ac19098309bfab030f1ce0c1098ea486a851 /hw/vfio | |
| parent | 64366eddf15a6224263c1152f9b0a1a97965e932 (diff) | |
| download | qemu-11ebce2a5544cacab31e8ff169c6f0ceef37f4e8.zip qemu-11ebce2a5544cacab31e8ff169c6f0ceef37f4e8.tar.gz qemu-11ebce2a5544cacab31e8ff169c6f0ceef37f4e8.tar.bz2 | |
vfio/migration: Enhance VFIO migration state tracing
Move trace_vfio_migration_set_state() to the top of the function, add
recover_state to it, and add a new trace event to
vfio_migration_set_device_state().
This improves tracing of device state changes as state changes are now
also logged when vfio_migration_set_state() fails (covering recover
state and device reset transitions) and in no-op state transitions to
the same state.
Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Avihai Horon <avihaih@nvidia.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Diffstat (limited to 'hw/vfio')
| -rw-r--r-- | hw/vfio/migration.c | 8 | ||||
| -rw-r--r-- | hw/vfio/trace-events | 3 |
2 files changed, 8 insertions, 3 deletions
diff --git a/hw/vfio/migration.c b/hw/vfio/migration.c index 56edffa..34d4be2 100644 --- a/hw/vfio/migration.c +++ b/hw/vfio/migration.c @@ -129,6 +129,9 @@ static void vfio_migration_set_device_state(VFIODevice *vbasedev, { VFIOMigration *migration = vbasedev->migration; + trace_vfio_migration_set_device_state(vbasedev->name, + mig_state_to_str(state)); + migration->device_state = state; vfio_migration_send_event(vbasedev); } @@ -150,6 +153,9 @@ static int vfio_migration_set_state(VFIODevice *vbasedev, g_strdup_printf("%s: Failed setting device state to %s.", vbasedev->name, mig_state_to_str(new_state)); + trace_vfio_migration_set_state(vbasedev->name, mig_state_to_str(new_state), + mig_state_to_str(recover_state)); + if (new_state == migration->device_state) { return 0; } @@ -209,8 +215,6 @@ static int vfio_migration_set_state(VFIODevice *vbasedev, migration->data_fd = mig_state->data_fd; } - trace_vfio_migration_set_state(vbasedev->name, mig_state_to_str(new_state)); - return 0; reset_device: diff --git a/hw/vfio/trace-events b/hw/vfio/trace-events index f0474b2..64161bf 100644 --- a/hw/vfio/trace-events +++ b/hw/vfio/trace-events @@ -152,7 +152,8 @@ vfio_load_device_config_state(const char *name) " (%s)" vfio_load_state(const char *name, uint64_t data) " (%s) data 0x%"PRIx64 vfio_load_state_device_data(const char *name, uint64_t data_size, int ret) " (%s) size 0x%"PRIx64" ret %d" vfio_migration_realize(const char *name) " (%s)" -vfio_migration_set_state(const char *name, const char *state) " (%s) state %s" +vfio_migration_set_device_state(const char *name, const char *state) " (%s) state %s" +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_cleanup(const char *name) " (%s)" |