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Date: Tue, 13 Sep 2011 13:05:19 +0300
From: Gleb Natapov <gleb@redhat.com>
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Subject: Re: [Qemu-devel] About hotplug multifunction
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To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: kvm@vger.kernel.org, qemu-devel@nongnu.org, blauwirbel@gmail.com, Isaku Yamahata <yamahata@valinux.co.jp>, Alex Williamson <alex.williamson@redhat.com>, Amos Kong <akong@redhat.com>

On Tue, Sep 13, 2011 at 01:05:00PM +0300, Michael S. Tsirkin wrote:
> On Tue, Sep 13, 2011 at 09:52:49AM +0300, Gleb Natapov wrote:
> > On Tue, Sep 13, 2011 at 02:57:20PM +0900, Isaku Yamahata wrote:
> > > 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.
> > > 
> > Where is this "standardized hotplug controller" documented?
> 
> Sorry both pci bridge and hotplug spec only reference shpc.
> The spec itself is PCI Standard Hot-Plug
> Controller and Subsystem Specification.
> 
> Revision 1.0 - get it from pcisig
> 
Thanks, Isaku is already pointed it to me.

--
			Gleb.