Hi folks,

In current kernel implementation for ARM platform, all devices under one PCI 
bridge share a same device ID and the total number of MSI interrupts is fixed 
at the first time any child device is allocating MSI. However, this may cause 
failure of allocating MSI if the system supports device hot-plug under the PCI 
bridge, which is possible for ARM virtual machine with generic 
pcie-to-pci-bridge and kernel config HOTPLUG_PCI_SHPC enabled.

Does it make sense to add support for the above scenario? If it does, any 
suggestion for how to do that?

Thanks,

Heyi


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