From 00823980b296c80a3ff7b448df20c48897cd62e9 Mon Sep 17 00:00:00 2001 From: Thomas Huth Date: Wed, 27 May 2020 17:31:52 +0200 Subject: hw/pci: Fix crash when running QEMU with "-nic model=rocker" QEMU currently aborts when being started with "-nic model=rocker" or with "-net nic,model=rocker". This happens because the "rocker" device is not a normal NIC but a switch, which has different properties. Thus we should only consider real NIC devices for "-nic" and "-net". These devices can be identified by the "netdev" property, so check for this property before adding the device to the list. Reported-by: Michael Tokarev Fixes: 52310c3fa7dc854d ("net: allow using any PCI NICs in -net or -nic") Signed-off-by: Thomas Huth Message-Id: <20200527153152.9211-1-thuth@redhat.com> Reviewed-by: Paolo Bonzini Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/pci/pci.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'hw/pci') diff --git a/hw/pci/pci.c b/hw/pci/pci.c index 7bf2ae6..1b88a32 100644 --- a/hw/pci/pci.c +++ b/hw/pci/pci.c @@ -1891,7 +1891,18 @@ PCIDevice *pci_nic_init_nofail(NICInfo *nd, PCIBus *rootbus, if (test_bit(DEVICE_CATEGORY_NETWORK, dc->categories) && dc->user_creatable) { const char *name = object_class_get_name(list->data); - g_ptr_array_add(pci_nic_models, (gpointer)name); + /* + * A network device might also be something else than a NIC, see + * e.g. the "rocker" device. Thus we have to look for the "netdev" + * property, too. Unfortunately, some devices like virtio-net only + * create this property during instance_init, so we have to create + * a temporary instance here to be able to check it. + */ + Object *obj = object_new_with_class(OBJECT_CLASS(dc)); + if (object_property_find(obj, "netdev", NULL)) { + g_ptr_array_add(pci_nic_models, (gpointer)name); + } + object_unref(obj); } next = list->next; g_slist_free_1(list); -- cgit v1.1