diff options
| -rw-r--r-- | hw/ppc/spapr_pci.c | 54 |
1 files changed, 40 insertions, 14 deletions
diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c index 7352028..9d99bc0 100644 --- a/hw/ppc/spapr_pci.c +++ b/hw/ppc/spapr_pci.c @@ -1221,23 +1221,40 @@ static const char *dt_name_from_class(uint8_t class, uint8_t subclass, */ static uint32_t drc_id_from_devfn(SpaprPhbState *phb, - uint32_t busnr, - int32_t devfn) + uint8_t chassis, int32_t devfn) { - return (phb->index << 16) | (busnr << 8) | devfn; + return (phb->index << 16) | (chassis << 8) | devfn; } static SpaprDrc *drc_from_devfn(SpaprPhbState *phb, - uint32_t busnr, int32_t devfn) + uint8_t chassis, int32_t devfn) { return spapr_drc_by_id(TYPE_SPAPR_DRC_PCI, - drc_id_from_devfn(phb, busnr, devfn)); + drc_id_from_devfn(phb, chassis, devfn)); +} + +static uint8_t chassis_from_bus(PCIBus *bus, Error **errp) +{ + if (pci_bus_is_root(bus)) { + return 0; + } else { + PCIDevice *bridge = pci_bridge_get_device(bus); + + return object_property_get_uint(OBJECT(bridge), "chassis_nr", errp); + } } static SpaprDrc *drc_from_dev(SpaprPhbState *phb, PCIDevice *dev) { - uint32_t busnr = pci_bus_num(PCI_BUS(qdev_get_parent_bus(DEVICE(dev)))); - return drc_from_devfn(phb, busnr, dev->devfn); + Error *local_err = NULL; + uint8_t chassis = chassis_from_bus(pci_get_bus(dev), &local_err); + + if (local_err) { + error_report_err(local_err); + return NULL; + } + + return drc_from_devfn(phb, chassis, dev->devfn); } static void add_drcs(SpaprPhbState *phb) @@ -1516,14 +1533,19 @@ static void spapr_pci_plug(HotplugHandler *plug_handler, spapr_drc_reset(drc); } else if (PCI_FUNC(pdev->devfn) == 0) { int i; + uint8_t chassis = chassis_from_bus(pci_get_bus(pdev), &local_err); + + if (local_err) { + error_propagate(errp, local_err); + return; + } for (i = 0; i < 8; i++) { SpaprDrc *func_drc; SpaprDrcClass *func_drck; SpaprDREntitySense state; - func_drc = drc_from_devfn(phb, pci_bus_num(bus), - PCI_DEVFN(slotnr, i)); + func_drc = drc_from_devfn(phb, chassis, PCI_DEVFN(slotnr, i)); func_drck = SPAPR_DR_CONNECTOR_GET_CLASS(func_drc); state = func_drck->dr_entity_sense(func_drc); @@ -1571,18 +1593,23 @@ static void spapr_pci_unplug_request(HotplugHandler *plug_handler, g_assert(drc->dev == plugged_dev); if (!spapr_drc_unplug_requested(drc)) { - PCIBus *bus = PCI_BUS(qdev_get_parent_bus(DEVICE(pdev))); uint32_t slotnr = PCI_SLOT(pdev->devfn); SpaprDrc *func_drc; SpaprDrcClass *func_drck; SpaprDREntitySense state; int i; + Error *local_err = NULL; + uint8_t chassis = chassis_from_bus(pci_get_bus(pdev), &local_err); + + if (local_err) { + error_propagate(errp, local_err); + return; + } /* ensure any other present functions are pending unplug */ if (PCI_FUNC(pdev->devfn) == 0) { for (i = 1; i < 8; i++) { - func_drc = drc_from_devfn(phb, pci_bus_num(bus), - PCI_DEVFN(slotnr, i)); + func_drc = drc_from_devfn(phb, chassis, PCI_DEVFN(slotnr, i)); func_drck = SPAPR_DR_CONNECTOR_GET_CLASS(func_drc); state = func_drck->dr_entity_sense(func_drc); if (state == SPAPR_DR_ENTITY_SENSE_PRESENT @@ -1603,8 +1630,7 @@ static void spapr_pci_unplug_request(HotplugHandler *plug_handler, */ if (PCI_FUNC(pdev->devfn) == 0) { for (i = 7; i >= 0; i--) { - func_drc = drc_from_devfn(phb, pci_bus_num(bus), - PCI_DEVFN(slotnr, i)); + func_drc = drc_from_devfn(phb, chassis, PCI_DEVFN(slotnr, i)); func_drck = SPAPR_DR_CONNECTOR_GET_CLASS(func_drc); state = func_drck->dr_entity_sense(func_drc); if (state == SPAPR_DR_ENTITY_SENSE_PRESENT) { |