[libvirt] [PATCH v5 4/4] qemu: Allow to plug virtio-net-pci into PCIe slot

virtio-net-pci adapter is capable to use irqfd with vhost-net only in MSI-X mode, which appears to be available only on PCIe bus, at least on ARM Signed-off-by: Pavel Fedin <p.fedin(a)samsung.com&gt; --- src/qemu/qemu_command.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 5569be6..a2594b0 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -1662,6 +1662,14 @@ qemuCollectPCIAddress(virDomainDefPtr def ATTRIBUTE_UNUSED, */ flags = VIR_PCI_CONNECT_TYPE_PCI | VIR_PCI_CONNECT_TYPE_PCIE; break; + + case VIR_DOMAIN_DEVICE_NET: + if (STREQ(device->data.net->model, "virtio")) { + /* virtio-net-pci adapter in qemu has to be plugged into PCIe slot + * in order to be able to use irqfds with vhost-net + */ + flags = VIR_PCI_CONNECT_TYPE_PCI | VIR_PCI_CONNECT_TYPE_PCIE; + } } /* Ignore implicit controllers on slot 0:0:1.0: -- 1.9.5.msysgit.0