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path: root/hw/ppc/spapr_pci.c
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Diffstat (limited to 'hw/ppc/spapr_pci.c')
-rw-r--r--hw/ppc/spapr_pci.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c
index 5049ced4e8..5a3122a9f9 100644
--- a/hw/ppc/spapr_pci.c
+++ b/hw/ppc/spapr_pci.c
@@ -1507,7 +1507,12 @@ static void spapr_pci_unplug_request(HotplugHandler *plug_handler,
static void spapr_phb_realize(DeviceState *dev, Error **errp)
{
- sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
+ /* We don't use SPAPR_MACHINE() in order to exit gracefully if the user
+ * tries to add a sPAPR PHB to a non-pseries machine.
+ */
+ sPAPRMachineState *spapr =
+ (sPAPRMachineState *) object_dynamic_cast(qdev_get_machine(),
+ TYPE_SPAPR_MACHINE);
SysBusDevice *s = SYS_BUS_DEVICE(dev);
sPAPRPHBState *sphb = SPAPR_PCI_HOST_BRIDGE(s);
PCIHostState *phb = PCI_HOST_BRIDGE(s);
@@ -1519,6 +1524,11 @@ static void spapr_phb_realize(DeviceState *dev, Error **errp)
const unsigned windows_supported =
sphb->ddw_enabled ? SPAPR_PCI_DMA_MAX_WINDOWS : 1;
+ if (!spapr) {
+ error_setg(errp, TYPE_SPAPR_PCI_HOST_BRIDGE " needs a pseries machine");
+ return;
+ }
+
if (sphb->index != (uint32_t)-1) {
sPAPRMachineClass *smc = SPAPR_MACHINE_GET_CLASS(spapr);
Error *local_err = NULL;