diff options
| author | Yi Min Zhao <zyimin@linux.vnet.ibm.com> | 2018-03-13 16:09:49 +0800 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2018-03-23 09:05:18 +0000 |
| commit | 57da367b9ec4da86ac944b8b54093056d8bcf76d (patch) | |
| tree | ad33341151150ee6e2094889ae80df041d7e103e /hw/s390x/s390-pci-bus.c | |
| parent | d522e0bd18364f6d784d43edab35b0563d21f6f3 (diff) | |
s390x/pci: forbid multifunction pci device
Currently we don't support pci multifunction. If a pci with
multifucntion is plugged, the guest will spin forever. This patch fixes
this.
Signed-off-by: Yi Min Zhao <zyimin@linux.vnet.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'hw/s390x/s390-pci-bus.c')
| -rw-r--r-- | hw/s390x/s390-pci-bus.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c index 77a50cab36..10da87458e 100644 --- a/hw/s390x/s390-pci-bus.c +++ b/hw/s390x/s390-pci-bus.c @@ -816,6 +816,11 @@ static void s390_pcihost_hot_plug(HotplugHandler *hotplug_dev, PCIBridge *pb = PCI_BRIDGE(dev); PCIDevice *pdev = PCI_DEVICE(dev); + if (pdev->cap_present & QEMU_PCI_CAP_MULTIFUNCTION) { + error_setg(errp, "multifunction not supported in s390"); + return; + } + pci_bridge_map_irq(pb, dev->id, s390_pci_map_irq); pci_setup_iommu(&pb->sec_bus, s390_pci_dma_iommu, s); @@ -835,6 +840,11 @@ static void s390_pcihost_hot_plug(HotplugHandler *hotplug_dev, } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) { pdev = PCI_DEVICE(dev); + if (pdev->cap_present & QEMU_PCI_CAP_MULTIFUNCTION) { + error_setg(errp, "multifunction not supported in s390"); + return; + } + if (!dev->id) { /* In the case the PCI device does not define an id */ /* we generate one based on the PCI address */ |