pci_bridge: user-friendly default bus name
For a pci bridge device, if we don't override the name with custom code, the bus will be addressed as <id>.0, where id is the id specified by the user. Since PCI Bridge devices have a single bus each, we don't need the index: address the bus using the parent device name. This is better since this way users don't care about our internal bus/device distinctions. As far as I could see, we only have built-in bridges at this point which always override the name. So this change will only affect ioh3420.c. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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@ -314,6 +314,16 @@ int pci_bridge_initfn(PCIDevice *dev)
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pci_set_word(dev->config + PCI_SEC_STATUS,
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PCI_STATUS_66MHZ | PCI_STATUS_FAST_BACK);
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/*
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* If we don't specify the name, the bus will be addressed as <id>.0, where
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* id is the device id.
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* Since PCI Bridge devices have a single bus each, we don't need the index:
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* let users address the bus using the device name.
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*/
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if (!br->bus_name && dev->qdev.id && *dev->qdev.id) {
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br->bus_name = dev->qdev.id;
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}
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qbus_create_inplace(&sec_bus->qbus, &pci_bus_info, &dev->qdev,
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br->bus_name);
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sec_bus->parent_dev = dev;
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