pci: don't use bus number in migration, stub out
Using bus numbers in migration is clearly wrong as they are guest assigned. Not really sure what the right thing to do is, for now stick 0 in there so things keep working for non-nested setups, add a TODO. We also probably have to mark nested bridges as non-migrateable until this is fixed? Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Alex Williamson <alex.williamson@redhat.com>
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hw/pci.c
5
hw/pci.c
@ -2014,7 +2014,10 @@ static char *pcibus_get_dev_path(DeviceState *dev)
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char path[16];
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snprintf(path, sizeof(path), "%04x:%02x:%02x.%x",
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pci_find_domain(d->bus), d->config[PCI_SECONDARY_BUS],
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pci_find_domain(d->bus),
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0 /* TODO: need a persistent path for nested buses.
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* Note: pci_bus_num(d->bus) is not right as it's guest
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* assigned. */,
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PCI_SLOT(d->devfn), PCI_FUNC(d->devfn));
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return strdup(path);
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