@@ -974,7 +974,14 @@ static void s390_pcihost_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
PCIDevice *pdev = PCI_DEVICE(dev);
- if (pdev->cap_present & QEMU_PCI_CAP_MULTIFUNCTION) {
+ /*
+ * Multifunction is not supported due to the lack of CLP. However,
+ * do not check for multifunction capability for SR-IOV devices because
+ * SR-IOV devices automatically add the multifunction capability whether
+ * the user intends to use the functions other than the PF.
+ */
+ if (pdev->cap_present & QEMU_PCI_CAP_MULTIFUNCTION &&
+ !pdev->exp.sriov_cap) {
error_setg(errp, "multifunction not supported in s390");
return;
}
The guest cannot use VFs due to the lack of multifunction support but can use PFs. Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> --- hw/s390x/s390-pci-bus.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)