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authorMarkus Armbruster <armbru@redhat.com>2013-11-28 17:26:58 +0100
committerAndreas Färber <afaerber@suse.de>2013-12-23 00:27:23 +0100
commit08c58f92f66dcf0a9097c3a6a65bcc4ffd71268f (patch)
tree25c48490e35cfaeae55d5f9370f479a4a56271a0 /hw/pci-host/prep.c
parentf37a4374bae20ca678b808b5ee32319e943b1b4b (diff)
pci-host: Consistently set cannot_instantiate_with_device_add_yet
Many PCI host bridges consist of a sysbus device and a PCI device. You need both for the thing to work. Arguably, these bridges should be modelled as a single, composite devices instead of pairs of seemingly independent devices you can only use together, but we're not there, yet. Since the sysbus part can't be instantiated with device_add, yet, permitting it with the PCI part is useless. We shouldn't offer useless options to the user, so let's set cannot_instantiate_with_device_add_yet for them. It's already set for Bonito, Grackle, i440FX and Raven. Document why. Set it for the others: dec-21154, e500-host-bridge, gt64120_pci, mch, pbm-pci, ppc4xx-host-bridge, sh_pci_host, u3-agp, uni-north-agp, uni-north-internal-pci, uni-north-pci, and versatile_pci_host. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel.a@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
Diffstat (limited to 'hw/pci-host/prep.c')
-rw-r--r--hw/pci-host/prep.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/hw/pci-host/prep.c b/hw/pci-host/prep.c
index ebc40c6ab8..042dc8f225 100644
--- a/hw/pci-host/prep.c
+++ b/hw/pci-host/prep.c
@@ -198,7 +198,11 @@ static void raven_class_init(ObjectClass *klass, void *data)
k->class_id = PCI_CLASS_BRIDGE_HOST;
dc->desc = "PReP Host Bridge - Motorola Raven";
dc->vmsd = &vmstate_raven;
- dc->cannot_instantiate_with_device_add_yet = true; /* FIXME explain why */
+ /*
+ * PCI-facing part of the host bridge, not usable without the
+ * host-facing part, which can't be device_add'ed, yet.
+ */
+ dc->cannot_instantiate_with_device_add_yet = true;
}
static const TypeInfo raven_info = {