Re: [PATCH for-6.0 0/4] Don't treat all sysbus devices as hotpluggable

[Peter Maydell]

On Thu, 25 Mar 2021 at 15:33, Peter Maydell <peter.maydell@linaro.org> wrote:
>
> On the two machines which have the "platform bus" (ppc e500 and arm
> virt) we currently treat all TYPE_SYS_BUS_DEVICE devices as being
> hotpluggable in the device callbacks, and try to plug those devices
> into the platform bus.  This is far too broad, because only a handful
> of devices are actually valid to plug into the platform bus.
> Moreover, if a device which is pluggable for some other reason (like
> a PCI device) happens to use a sysbus device internally as part of
> its implementation, the hotplug callback will incorrectly grab that
> sysbus device, probably resulting in an assertion failure.

I'm taking this into target-arm.next for 6.0 (with minor commit message
and comment text tweaks to use 'allowlist' as suggested by rth).

thanks
-- PMM