Re: Is it possible to support hotplug device to PXB bridge?

[Daniel P . Berrangé]

On Fri, Apr 22, 2022 at 03:17:11PM +0800, Eric Ren wrote:
> Hi Marcel and all,
> 
> It fails when I want to hotplug device to PXB bus. Then, I find this
> commit that explicitely declares the fact that PXB bus does not support
> hotplug device onto it.
> 
> 7b346c742cd9 ("hw/pxb: declare pxb devices as not hot-pluggable")
> 
> Could you please help confirm the possibility to make PXB bus hotpluggable,
> and the main work to achieve it if possible?

Instead of trying to hotplug into the PXB, attach a 'pci-bridge' to the
PXB and then you can hotplug into the latter instead.

> Yes, pxb-pcie with Q35 do support hotplug, but we use i440 machine a long way,
> not  willing to change machine type to have it.

With regards,
Daniel
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