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xen: Fix PV-on-HVM 

In the context of PV-on-HVM under Xen, the emulated nics are supposed to be
unplug before the guest drivers are initialized, when the guest write to a
specific IO port.

Without this patch, the guest end up with two nics with the same MAC, the
emulated nic and the PV nic.

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Anthony PERARD 2012-05-17 10:31:20 +00:00 committed by Stefano Stabellini
parent ed54776643
commit a4f1a7589a
1 changed files with 4 additions and 1 deletions
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5
hw/xen_platform.c
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@ -87,7 +87,10 @@ static void unplug_nic(PCIBus *b, PCIDevice *d)
{ {
if (pci_get_word(d->config + PCI_CLASS_DEVICE) == if (pci_get_word(d->config + PCI_CLASS_DEVICE) ==
PCI_CLASS_NETWORK_ETHERNET) { PCI_CLASS_NETWORK_ETHERNET) {
qdev_unplug(&(d->qdev), NULL); /* Until qdev_free includes a call to object_unparent, we call it here
*/
object_unparent(&d->qdev.parent_obj);
qdev_free(&d->qdev);
} }
} }