Set _SAVING flag for device state from vmstate change handler when it
gets called from savevm.
Currently State transition savevm/suspend is seen as:
_RUNNING -> _STOP -> Stop-and-copy -> _STOP
State transition savevm/suspend should be:
_RUNNING -> Stop-and-copy -> _STOP
State transition from _RUNNING to _STOP occurs from
vfio_vmstate_change() where when vmstate changes from running to
!running, _RUNNING flag is reset but at the same time when
vfio_vmstate_change() is called for RUN_STATE_SAVE_VM, _SAVING bit
should be set.
Reported by: Yishai Hadas <yishaih@nvidia.com>
Signed-off-by: Kirti Wankhede <kwankhede@nvidia.com>
Message-Id: <
1623177441-27496-1-git-send-email-kwankhede@nvidia.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
* _RUNNING bit
*/
mask = ~VFIO_DEVICE_STATE_RUNNING;
- value = 0;
+
+ /*
+ * When VM state transition to stop for savevm command, device should
+ * start saving data.
+ */
+ if (state == RUN_STATE_SAVE_VM) {
+ value = VFIO_DEVICE_STATE_SAVING;
+ } else {
+ value = 0;
+ }
}
ret = vfio_migration_set_state(vbasedev, mask, value);