spapr_cpu_core: fail gracefully with non-pseries machine types

Since commit 7cca3e466e ("ppc: spapr: Move VCPU ID calculation into
sPAPR"), QEMU aborts when started with a *-spapr-cpu-core device and
a non-pseries machine.

Let's rely on the already existing call to object_dynamic_cast() instead
of using the SPAPR_MACHINE() macro.

Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Greg Kurz 2017-09-11 22:52:06 +02:00 committed by David Gibson
parent a1a6bbde4f
commit 1bbadc759e
1 changed files with 3 additions and 2 deletions

View File

@ -213,7 +213,7 @@ error:
static void spapr_cpu_core_realize(DeviceState *dev, Error **errp)
{
sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
sPAPRMachineState *spapr;
sPAPRCPUCore *sc = SPAPR_CPU_CORE(OBJECT(dev));
sPAPRCPUCoreClass *scc = SPAPR_CPU_CORE_GET_CLASS(OBJECT(dev));
CPUCore *cc = CPU_CORE(OBJECT(dev));
@ -223,7 +223,8 @@ static void spapr_cpu_core_realize(DeviceState *dev, Error **errp)
void *obj;
int i, j;
if (!object_dynamic_cast(qdev_get_machine(), TYPE_SPAPR_MACHINE)) {
spapr = (sPAPRMachineState *) qdev_get_machine();
if (!object_dynamic_cast((Object *) spapr, TYPE_SPAPR_MACHINE)) {
error_setg(errp, "spapr-cpu-core needs a pseries machine");
return;
}