pnv: Add cpu unrealize path

Currently we don't have any unrealize path for pnv cpu cores.  We get away
with this because we don't yet support cpu hotplug for pnv.

However, we're going to want it eventually, and in the meantime, it makes
it non-obvious why there are a bunch of allocations on the realize() path
that don't have matching frees.

So, implement the missing unrealize path.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>

1 files changed, 21 insertions, 0 deletions

diff --git a/hw/ppc/pnv_core.c b/hw/ppc/pnv_core.c
index f4c41d8..f7cf33f 100644
--- a/hw/ppc/pnv_core.c
+++ b/hw/ppc/pnv_core.c
@@ -186,6 +186,26 @@ err:
     error_propagate(errp, local_err);
 }
 
+static void pnv_unrealize_vcpu(PowerPCCPU *cpu)
+{
+    qemu_unregister_reset(pnv_cpu_reset, cpu);
+    object_unparent(cpu->intc);
+    cpu_remove_sync(CPU(cpu));
+    object_unparent(OBJECT(cpu));
+}
+
+static void pnv_core_unrealize(DeviceState *dev, Error **errp)
+{
+    PnvCore *pc = PNV_CORE(dev);
+    CPUCore *cc = CPU_CORE(dev);
+    int i;
+
+    for (i = 0; i < cc->nr_threads; i++) {
+        pnv_unrealize_vcpu(pc->threads[i]);
+    }
+    g_free(pc->threads);
+}
+
 static Property pnv_core_properties[] = {
     DEFINE_PROP_UINT32("pir", PnvCore, pir, 0),
     DEFINE_PROP_END_OF_LIST(),
@@ -196,6 +216,7 @@ static void pnv_core_class_init(ObjectClass *oc, void *data)
     DeviceClass *dc = DEVICE_CLASS(oc);
 
     dc->realize = pnv_core_realize;
+    dc->unrealize = pnv_core_unrealize;
     dc->props = pnv_core_properties;
 }