Re: About hotplug multifunction

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On Sun, Sep 11, 2011 at 12:05:17PM +0300, Michael S. Tsirkin wrote:
> On Sat, Sep 10, 2011 at 02:43:11AM +0900, Isaku Yamahata wrote:
> > pci/pcie hot plug needs clean up for multifunction hotplug in long term.
> > Only single function device case works. Multifunction case is broken somwehat.
> > Especially the current acpi based hotplug should be replaced by
> > the standardized hot plug controller in long term.
> 
> We'll need to keep supporting windows XP, which IIUC only
> supports hotplug through ACPI. So it looks like we'll
> need both.

Yes, we'll need both then.
It would be possible to implement acpi-based hotplug with
standardized hotplug controller. Not with qemu-specific controller.

It would require a bit amount of work to write ACPI code in DSDT that
handles standardized hotplug controller.
So I'm not sure it's worth while only for windows XP support.
-- 
yamahata
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