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hw/xen: only remove peers of PCI NICs on unplug 

When the Xen guest asks to unplug *emulated* NICs, it's kind of unhelpful
also to unplug the peer of the *Xen* PV NIC.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
This commit is contained in:
David Woodhouse 2023-10-17 13:32:50 +01:00
parent a72ccc7fc4
commit 25511f3e8c
1 changed files with 7 additions and 2 deletions
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9
hw/i386/xen/xen_platform.c
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@ -140,9 +140,14 @@ static void unplug_nic(PCIBus *b, PCIDevice *d, void *o)
/* Remove the peer of the NIC device. Normally, this would be a tap device. */
static void del_nic_peer(NICState *nic, void *opaque)
{
NetClientState *nc;
NetClientState *nc = qemu_get_queue(nic);
ObjectClass *klass = module_object_class_by_name(nc->model);
/* Only delete peers of PCI NICs that we're about to delete */
if (!klass || !object_class_dynamic_cast(klass, TYPE_PCI_DEVICE)) {
return;
}
nc = qemu_get_queue(nic);
if (nc->peer)
qemu_del_net_client(nc->peer);
}