From: Isaku Yamahata <yamahata@valinux.co.jp>
To: Gleb Natapov <gleb@redhat.com>
Cc: kvm@vger.kernel.org, "Michael S. Tsirkin" <mst@redhat.com>,
qemu-devel@nongnu.org, blauwirbel@gmail.com,
Alex Williamson <alex.williamson@redhat.com>,
Amos Kong <akong@redhat.com>
Subject: Re: [Qemu-devel] About hotplug multifunction
Date: Tue, 13 Sep 2011 16:00:12 +0900 [thread overview]
Message-ID: <20110913070012.GA26936@valinux.co.jp> (raw)
In-Reply-To: <20110913065249.GN21417@redhat.com>
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?
PCI Hot-Plug 1.1 by PCI sig.
NOTE: I already implemented pcie native hotplug in qemu which is defined
in pcie spec.
> > 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
>
> --
> Gleb.
>
--
yamahata
next prev parent reply other threads:[~2011-09-13 7:00 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1749303074.590739.1315551830460.JavaMail.root@zmail05.collab.prod.int.phx2.redhat.com>
2011-09-09 7:08 ` [Qemu-devel] About hotplug multifunction Amos Kong
2011-09-09 7:32 ` Michael S. Tsirkin
2011-09-09 17:05 ` Alex Williamson
2011-09-09 18:34 ` Marcelo Tosatti
2011-09-11 9:23 ` Michael S. Tsirkin
2011-09-11 15:01 ` Marcelo Tosatti
2011-09-11 18:51 ` Michael S. Tsirkin
2011-09-12 10:21 ` Marcelo Tosatti
2011-09-12 10:56 ` Marcelo Tosatti
2011-09-12 12:24 ` Michael S. Tsirkin
2011-09-13 12:23 ` Amos Kong
2011-09-13 14:24 ` Amos Kong
2011-09-09 17:43 ` Isaku Yamahata
2011-09-11 9:05 ` Michael S. Tsirkin
2011-09-13 5:57 ` Isaku Yamahata
2011-09-13 6:52 ` Gleb Natapov
2011-09-13 7:00 ` Isaku Yamahata [this message]
2011-09-13 10:00 ` Michael S. Tsirkin
2011-09-13 10:05 ` Michael S. Tsirkin
2011-09-13 10:05 ` Gleb Natapov
2011-11-23 9:06 ` Amos Kong
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