static bool spapr_drc_needed(void *opaque) { sPAPRDRConnector *drc = (sPAPRDRConnector *)opaque; sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); bool rc = false; sPAPRDREntitySense value = drck->dr_entity_sense(drc); /* If no dev is plugged in there is no need to migrate the DRC state */ if (value != SPAPR_DR_ENTITY_SENSE_PRESENT) { return false; } /* * If there is dev plugged in, we need to migrate the DRC state when * it is different from cold-plugged state */ switch (spapr_drc_type(drc)) { case SPAPR_DR_CONNECTOR_TYPE_PCI: case SPAPR_DR_CONNECTOR_TYPE_CPU: case SPAPR_DR_CONNECTOR_TYPE_LMB: rc = !((drc->isolation_state == SPAPR_DR_ISOLATION_STATE_UNISOLATED) && (drc->allocation_state == SPAPR_DR_ALLOCATION_STATE_USABLE) && drc->configured && !drc->awaiting_release); break; case SPAPR_DR_CONNECTOR_TYPE_PHB: case SPAPR_DR_CONNECTOR_TYPE_VIO: default: g_assert_not_reached(); } return rc; }