From: Gerd Hoffmann <kraxel@redhat.com>
To: Eduardo Habkost <ehabkost@redhat.com>
Cc: igvt-g@ml01.01.org, xen-devel@lists.xensource.com,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
qemu-devel@nongnu.org, Cao jin <caoj.fnst@cn.fujitsu.com>,
vfio-users@redhat.com
Subject: Re: [Qemu-devel] [PATCH v3 04/11] igd: switch TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE to realize
Date: Mon, 25 Jan 2016 09:59:10 +0100 [thread overview]
Message-ID: <1453712350.22422.31.camel@redhat.com> (raw)
In-Reply-To: <20160123145152.GC4218@thinpad.lan.raisama.net>
Hi,
> > static void igd_passthrough_i440fx_class_init(ObjectClass *klass, void *data)
> > @@ -78,7 +77,7 @@ static void igd_passthrough_i440fx_class_init(ObjectClass *klass, void *data)
> > DeviceClass *dc = DEVICE_CLASS(klass);
> > PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
> >
> > - k->init = igd_pt_i440fx_initfn;
> > + k->realize = igd_pt_i440fx_realize;
>
> I am trying to understand how this have ever worked before:
>
> * PCIDeviceClass::init is called by pci_default_realize()
> (default value for PCIDeviceClass::realize)
> * i440fx_class_init() overrides PCIDeviceClass::realize
> to i440fx_realize()
>
> So, when exactly was igd_pt_i440fx_realize() being called, before
> this series?
It simply didn't?
I suspect this got ported over from the qemu-xen tree, but wasn't really
tested and also not adapted to commit "9af21db pci: Trivial device model
conversions to realize". So this patch actually is yet another
bugfix ...
Current test status of this series (by Hao) is this:
* newer linux intel drivers work just fine without chipset tweaks.
* older linux intel drivers and windows guests don't work even with
all the fixes in this series.
So applying the series doesn't improve things at all (code cleanups
aside). My current plan to go forward is:
(a) get test hardware (wip atm).
(b) go figure what is really needed, lots of testing.
(c) rework and repost series.
cheers,
Gerd
WARNING: multiple messages have this Message-ID (diff)
From: Gerd Hoffmann <kraxel@redhat.com>
To: Eduardo Habkost <ehabkost@redhat.com>
Cc: igvt-g@ml01.01.org, xen-devel@lists.xensource.com,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
qemu-devel@nongnu.org, Cao jin <caoj.fnst@cn.fujitsu.com>,
vfio-users@redhat.com
Subject: Re: [PATCH v3 04/11] igd: switch TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE to realize
Date: Mon, 25 Jan 2016 09:59:10 +0100 [thread overview]
Message-ID: <1453712350.22422.31.camel@redhat.com> (raw)
In-Reply-To: <20160123145152.GC4218@thinpad.lan.raisama.net>
Hi,
> > static void igd_passthrough_i440fx_class_init(ObjectClass *klass, void *data)
> > @@ -78,7 +77,7 @@ static void igd_passthrough_i440fx_class_init(ObjectClass *klass, void *data)
> > DeviceClass *dc = DEVICE_CLASS(klass);
> > PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
> >
> > - k->init = igd_pt_i440fx_initfn;
> > + k->realize = igd_pt_i440fx_realize;
>
> I am trying to understand how this have ever worked before:
>
> * PCIDeviceClass::init is called by pci_default_realize()
> (default value for PCIDeviceClass::realize)
> * i440fx_class_init() overrides PCIDeviceClass::realize
> to i440fx_realize()
>
> So, when exactly was igd_pt_i440fx_realize() being called, before
> this series?
It simply didn't?
I suspect this got ported over from the qemu-xen tree, but wasn't really
tested and also not adapted to commit "9af21db pci: Trivial device model
conversions to realize". So this patch actually is yet another
bugfix ...
Current test status of this series (by Hao) is this:
* newer linux intel drivers work just fine without chipset tweaks.
* older linux intel drivers and windows guests don't work even with
all the fixes in this series.
So applying the series doesn't improve things at all (code cleanups
aside). My current plan to go forward is:
(a) get test hardware (wip atm).
(b) go figure what is really needed, lots of testing.
(c) rework and repost series.
cheers,
Gerd
next prev parent reply other threads:[~2016-01-25 8:59 UTC|newest]
Thread overview: 132+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-05 11:41 [Qemu-devel] [PATCH v3 00/11] igd passthrough chipset tweaks Gerd Hoffmann
2016-01-05 11:41 ` Gerd Hoffmann
2016-01-05 11:41 ` [Qemu-devel] [PATCH v3 01/11] pc: wire up TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE for !xen Gerd Hoffmann
2016-01-05 11:41 ` Gerd Hoffmann
2016-01-05 11:41 ` [Qemu-devel] [PATCH v3 02/11] pc: remove has_igd_gfx_passthru global Gerd Hoffmann
2016-01-05 11:41 ` Gerd Hoffmann
2016-01-06 14:32 ` [Qemu-devel] [Xen-devel] " Stefano Stabellini
2016-01-06 14:32 ` Stefano Stabellini
2016-01-19 15:09 ` [Qemu-devel] " Eduardo Habkost
2016-01-19 15:09 ` Eduardo Habkost
2016-01-05 11:41 ` [Qemu-devel] [PATCH v3 03/11] pc: move igd support code to igd.c Gerd Hoffmann
2016-01-05 11:41 ` Gerd Hoffmann
2016-01-05 11:41 ` [Qemu-devel] [PATCH v3 04/11] igd: switch TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE to realize Gerd Hoffmann
2016-01-05 11:41 ` Gerd Hoffmann
2016-01-06 14:32 ` [Qemu-devel] " Stefano Stabellini
2016-01-06 14:32 ` Stefano Stabellini
2016-01-23 14:51 ` [Qemu-devel] " Eduardo Habkost
2016-01-23 14:51 ` Eduardo Habkost
2016-01-25 8:59 ` Gerd Hoffmann [this message]
2016-01-25 8:59 ` Gerd Hoffmann
2016-01-25 11:53 ` [Qemu-devel] " Stefano Stabellini
2016-01-25 11:53 ` Stefano Stabellini
2016-01-05 11:41 ` [Qemu-devel] [PATCH v3 05/11] igd: TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE: call parent realize Gerd Hoffmann
2016-01-05 11:41 ` Gerd Hoffmann
2016-01-06 14:41 ` [Qemu-devel] " Stefano Stabellini
2016-01-06 14:41 ` Stefano Stabellini
2016-01-06 15:45 ` [Qemu-devel] " Gerd Hoffmann
2016-01-06 15:45 ` Gerd Hoffmann
2016-01-19 15:13 ` [Qemu-devel] " Eduardo Habkost
2016-01-19 15:13 ` Eduardo Habkost
2016-01-20 9:10 ` [Qemu-devel] " Gerd Hoffmann
2016-01-20 9:10 ` Gerd Hoffmann
2016-01-23 14:52 ` [Qemu-devel] " Eduardo Habkost
2016-01-23 14:52 ` Eduardo Habkost
2016-01-05 11:41 ` [Qemu-devel] [PATCH v3 06/11] igd: use defines for standard pci config space offsets Gerd Hoffmann
2016-01-05 11:41 ` Gerd Hoffmann
2016-01-06 14:43 ` [Qemu-devel] " Stefano Stabellini
2016-01-06 14:43 ` Stefano Stabellini
2016-01-05 11:41 ` [Qemu-devel] [PATCH v3 07/11] igd: revamp host config read Gerd Hoffmann
2016-01-05 11:41 ` Gerd Hoffmann
2016-01-06 15:02 ` [Qemu-devel] " Stefano Stabellini
2016-01-06 15:02 ` Stefano Stabellini
2016-01-06 15:51 ` [Qemu-devel] " Gerd Hoffmann
2016-01-06 15:51 ` Gerd Hoffmann
2016-01-06 16:23 ` [Qemu-devel] [Xen-devel] " Stefano Stabellini
2016-01-06 16:23 ` Stefano Stabellini
2016-01-05 11:41 ` [Qemu-devel] [PATCH v3 08/11] igd: add q35 support Gerd Hoffmann
2016-01-05 11:41 ` Gerd Hoffmann
2016-01-05 11:41 ` [Qemu-devel] [PATCH v3 09/11] igd: move igd-passthrough-isa-bridge to igd.c too Gerd Hoffmann
2016-01-05 11:41 ` Gerd Hoffmann
2016-01-05 11:41 ` [Qemu-devel] [PATCH v3 10/11] igd: handle igd-passthrough-isa-bridge setup in realize() Gerd Hoffmann
2016-01-05 11:41 ` Gerd Hoffmann
2016-01-06 15:29 ` [Qemu-devel] " Stefano Stabellini
2016-01-06 15:29 ` Stefano Stabellini
2016-01-06 15:52 ` [Qemu-devel] " Gerd Hoffmann
2016-01-06 15:52 ` Gerd Hoffmann
2016-01-05 11:41 ` [Qemu-devel] [PATCH v3 11/11] igd: move igd-passthrough-isa-bridge creation to machine init Gerd Hoffmann
2016-01-05 11:41 ` Gerd Hoffmann
2016-01-06 15:36 ` [Qemu-devel] " Stefano Stabellini
2016-01-06 15:36 ` Stefano Stabellini
2016-01-07 7:38 ` [Qemu-devel] " Gerd Hoffmann
2016-01-07 7:38 ` Gerd Hoffmann
2016-01-07 13:10 ` [Qemu-devel] " Stefano Stabellini
2016-01-07 13:10 ` Stefano Stabellini
2016-01-07 15:50 ` [Qemu-devel] " Gerd Hoffmann
2016-01-07 15:50 ` Gerd Hoffmann
2016-01-08 11:20 ` Stefano Stabellini
2016-01-08 11:20 ` Stefano Stabellini
2016-01-08 12:12 ` [Qemu-devel] " Stefano Stabellini
2016-01-08 12:12 ` Stefano Stabellini
2016-01-08 12:32 ` Gerd Hoffmann
2016-01-08 12:32 ` Gerd Hoffmann
2016-01-08 12:38 ` [Qemu-devel] " Stefano Stabellini
2016-01-08 12:38 ` Stefano Stabellini
2016-01-05 13:07 ` [Qemu-devel] [PATCH v3 00/11] igd passthrough chipset tweaks Michael S. Tsirkin
2016-01-05 13:07 ` Michael S. Tsirkin
2016-01-28 19:35 ` [Qemu-devel] [vfio-users] " Alex Williamson
2016-01-28 19:35 ` Alex Williamson
2016-01-29 2:22 ` [Qemu-devel] [iGVT-g] " Kay, Allen M
2016-01-29 2:22 ` Kay, Allen M
2016-01-29 2:54 ` [Qemu-devel] " Alex Williamson
2016-01-29 2:54 ` Alex Williamson
2016-01-29 6:21 ` [Qemu-devel] " Jike Song
2016-01-29 6:21 ` Jike Song
2016-01-29 21:58 ` [Qemu-devel] " Kay, Allen M
2016-01-29 21:58 ` Kay, Allen M
2016-02-02 7:07 ` [Qemu-devel] " Tian, Kevin
2016-02-02 7:07 ` Tian, Kevin
2016-02-02 19:10 ` [Qemu-devel] " Kay, Allen M
2016-02-02 19:10 ` [iGVT-g] " Kay, Allen M
2016-02-02 19:37 ` [Qemu-devel] [iGVT-g] [vfio-users] " Alex Williamson
2016-02-02 19:37 ` Alex Williamson
2016-02-02 23:32 ` [Qemu-devel] " Kay, Allen M
2016-02-02 23:32 ` Kay, Allen M
2016-01-29 7:09 ` [Qemu-devel] " Gerd Hoffmann
2016-01-29 7:09 ` Gerd Hoffmann
2016-01-29 17:59 ` [Qemu-devel] " Alex Williamson
2016-01-29 17:59 ` Alex Williamson
2016-01-30 1:18 ` [Qemu-devel] [iGVT-g] " Kay, Allen M
2016-01-30 1:18 ` Kay, Allen M
2016-01-31 17:42 ` [Qemu-devel] " Alex Williamson
2016-01-31 17:42 ` Alex Williamson
2016-02-02 0:04 ` [Qemu-devel] " Kay, Allen M
2016-02-02 0:04 ` Kay, Allen M
2016-02-02 6:42 ` [Qemu-devel] [Xen-devel] " Tian, Kevin
2016-02-02 6:42 ` Tian, Kevin
2016-02-02 11:50 ` [Qemu-devel] " David Woodhouse
2016-02-02 11:50 ` David Woodhouse
2016-02-02 14:54 ` [Qemu-devel] " Alex Williamson
2016-02-02 14:54 ` Alex Williamson
2016-02-02 15:06 ` [Qemu-devel] " David Woodhouse
2016-02-02 15:06 ` David Woodhouse
2016-02-02 14:38 ` [Qemu-devel] " Alex Williamson
2016-02-02 14:38 ` Alex Williamson
2016-02-01 12:49 ` [Qemu-devel] " Gerd Hoffmann
2016-02-01 12:49 ` Gerd Hoffmann
2016-02-01 22:16 ` [Qemu-devel] " Alex Williamson
2016-02-01 22:16 ` Alex Williamson
2016-02-02 7:43 ` [Qemu-devel] [vfio-users] " Gerd Hoffmann
2016-02-02 7:43 ` Gerd Hoffmann
2016-02-02 7:01 ` [Qemu-devel] [iGVT-g] " Tian, Kevin
2016-02-02 7:01 ` [iGVT-g] " Tian, Kevin
2016-02-02 8:56 ` [Qemu-devel] [iGVT-g] [vfio-users] " Gerd Hoffmann
2016-02-02 8:56 ` Gerd Hoffmann
2016-02-02 16:31 ` [Qemu-devel] " Kevin O'Connor
2016-02-02 16:31 ` Kevin O'Connor
2016-02-02 16:49 ` [Qemu-devel] " Laszlo Ersek
2016-02-02 16:49 ` Laszlo Ersek
2016-02-02 20:18 ` [Qemu-devel] " Alex Williamson
2016-02-02 20:18 ` Alex Williamson
2016-02-03 6:08 ` [Qemu-devel] " Tian, Kevin
2016-02-03 6:08 ` Tian, Kevin
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