diff options
| -rw-r--r-- | hw/ppc/spapr_drc.c | 6 | ||||
| -rw-r--r-- | hw/ppc/spapr_hcall.c | 8 | ||||
| -rw-r--r-- | include/hw/ppc/spapr_drc.h | 3 |
3 files changed, 14 insertions, 3 deletions
diff --git a/hw/ppc/spapr_drc.c b/hw/ppc/spapr_drc.c index 8d62f55..5b5e2ac 100644 --- a/hw/ppc/spapr_drc.c +++ b/hw/ppc/spapr_drc.c @@ -417,9 +417,10 @@ void spapr_drc_detach(SpaprDrc *drc) spapr_drc_release(drc); } -void spapr_drc_reset(SpaprDrc *drc) +bool spapr_drc_reset(SpaprDrc *drc) { SpaprDrcClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); + bool unplug_completed = false; trace_spapr_drc_reset(spapr_drc_index(drc)); @@ -428,6 +429,7 @@ void spapr_drc_reset(SpaprDrc *drc) */ if (drc->unplug_requested) { spapr_drc_release(drc); + unplug_completed = true; } if (drc->dev) { @@ -444,6 +446,8 @@ void spapr_drc_reset(SpaprDrc *drc) drc->ccs_offset = -1; drc->ccs_depth = -1; } + + return unplug_completed; } static bool spapr_drc_unplug_requested_needed(void *opaque) diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c index 4e9d50c..aa22830 100644 --- a/hw/ppc/spapr_hcall.c +++ b/hw/ppc/spapr_hcall.c @@ -1639,6 +1639,7 @@ static void spapr_handle_transient_dev_before_cas(SpaprMachineState *spapr) ObjectPropertyIterator iter; drc_container = container_get(object_get_root(), "/dr-connector"); +restart: object_property_iter_init(&iter, drc_container); while ((prop = object_property_iter_next(&iter))) { SpaprDrc *drc; @@ -1652,8 +1653,13 @@ static void spapr_handle_transient_dev_before_cas(SpaprMachineState *spapr) /* * This will complete any pending plug/unplug requests. + * In case of a unplugged PHB or PCI bridge, this will + * cause some DRCs to be destroyed and thus potentially + * invalidate the iterator. */ - spapr_drc_reset(drc); + if (spapr_drc_reset(drc)) { + goto restart; + } } spapr_clear_pending_hotplug_events(spapr); diff --git a/include/hw/ppc/spapr_drc.h b/include/hw/ppc/spapr_drc.h index cff5e70..5d80019 100644 --- a/include/hw/ppc/spapr_drc.h +++ b/include/hw/ppc/spapr_drc.h @@ -224,7 +224,8 @@ static inline bool spapr_drc_hotplugged(DeviceState *dev) return dev->hotplugged && !runstate_check(RUN_STATE_INMIGRATE); } -void spapr_drc_reset(SpaprDrc *drc); +/* Returns true if an unplug request completed */ +bool spapr_drc_reset(SpaprDrc *drc); uint32_t spapr_drc_index(SpaprDrc *drc); SpaprDrcType spapr_drc_type(SpaprDrc *drc); |