diff options
| author | Akihiko Odaki <akihiko.odaki@daynix.com> | 2025-01-16 18:00:55 +0900 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2025-02-20 18:23:19 -0500 |
| commit | d966250e93c1194c0a4c775e08a8e23f2ef66cf8 (patch) | |
| tree | edd5eb5f8ac274bca548a60a2b240ae716044aaf | |
| parent | b77a2778d9bbefc6119331ce3083d85d69d7a0c1 (diff) | |
| download | qemu-d966250e93c1194c0a4c775e08a8e23f2ef66cf8.zip qemu-d966250e93c1194c0a4c775e08a8e23f2ef66cf8.tar.gz qemu-d966250e93c1194c0a4c775e08a8e23f2ef66cf8.tar.bz2 | |
s390x/pci: Allow plugging SR-IOV devices
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>
Message-Id: <20250116-reuse-v20-4-7cb370606368@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| -rw-r--r-- | hw/s390x/s390-pci-bus.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c index 8c5eb69..c396d55 100644 --- a/hw/s390x/s390-pci-bus.c +++ b/hw/s390x/s390-pci-bus.c @@ -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; } |