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Re: [PATCH] Add a new PIIX option to control PCI hot unplugging of devic


From: Michael S. Tsirkin
Subject: Re: [PATCH] Add a new PIIX option to control PCI hot unplugging of devices on non-root buses
Date: Fri, 17 Apr 2020 12:09:00 -0400

On Fri, Apr 17, 2020 at 03:36:14PM +0000, Ani Sinha wrote:
> 
> 
> > On Apr 17, 2020, at 8:57 PM, Michael S. Tsirkin <address@hidden> wrote:
> > 
> > Is there a real reason to do this? Can't we just limit the
> > hotplug control to pcie ports? At some point I'd like us to
> > start leaving piix alone..
> 
> Yes we really need this feature as want to be able to hot plug devices into 
> the guest but prevent customers from hot unplugging them from say Windows 
> system tray.
> 
> ani

Problem is, I think this is not something we can support with pcie or shpc.
I'm reluctant to add features that only ACPI can support,
we are trying to phase that out.
Better ideas?

-- 
MST




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