From 9fd905fa0ed4dcfc7c6918131dc3c2eb9e9ed157 Mon Sep 17 00:00:00 2001 From: Farrah Chen Date: Mon, 21 Oct 2024 09:06:48 +0000 Subject: [PATCH] Enable IOMMUFD for VM device passthrough Signed-off-by: Farrah Chen Signed-off-by: Xudong Hao --- virttest/qemu_devices/qcontainer.py | 25 ++++++++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) diff --git a/virttest/qemu_devices/qcontainer.py b/virttest/qemu_devices/qcontainer.py index e21748bb4b..766f69b493 100644 --- a/virttest/qemu_devices/qcontainer.py +++ b/virttest/qemu_devices/qcontainer.py @@ -4031,9 +4031,32 @@ def hostdev_define_by_params(self, name, params, bus=None): "failover_pair_id": params.get("vm_hostdev_failover_pair_id"), } ) + + devs = [] + iommufd_id = params.get("vm_hostdev_iommufd") + if iommufd_id: + dev_params["iommufd"] = iommufd_id + if not self.get_by_qid(iommufd_id): + iommufd = self.iommufd_object_define_by_params(iommufd_id) + devs.append(iommufd) + # TODO: Support vfio-ap and vfio-ccw, currently only for pci devices dev_bus = bus or {"aobject": params.get("pci_bus", "pci.0")} dev = qdevices.QDevice(driver, dev_params, parent_bus=dev_bus) for ext_k, ext_v in params.get_dict("vm_hostdev_extra_params").items(): dev.set_param(ext_k, ext_v) - return dev + devs.append(dev) + return devs + + def iommufd_object_define_by_params(self, obj_id): + """ + Create iommufd object device by params + + The iommufd objects cmdlines: + -object iommufd,id=iommufd0 + + :param obj_id: The id of the QObject device, e.g. iommufd0 + :return: the iommufd QObject device + """ + backend, properties = "iommufd", {"id": obj_id} + return qdevices.QObject(backend, properties)