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s390x/cpu: Add CPU property links 

Link each CPUState as property machine/cpu[n] during initialization.
Add a hotplug handler to s390-virtio-ccw machine and set the
state during plug.

Signed-off-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Message-Id: <1457112875-5209-6-git-send-email-mjrosato@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
This commit is contained in:
Matthew Rosato 2016-03-04 12:34:33 -05:00 committed by Cornelia Huck
parent 25637d31f2
commit 502edbf834
2 changed files with 46 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
hw/s390x/s390-virtio-ccw.c
View File

@ -156,10 +156,41 @@ static void ccw_init(MachineState *machine)
gtod_save, gtod_load, kvm_state);
}
static void s390_cpu_plug(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
gchar *name;
S390CPU *cpu = S390_CPU(dev);
CPUState *cs = CPU(dev);
name = g_strdup_printf("cpu[%i]", cpu->env.cpu_num);
object_property_set_link(OBJECT(hotplug_dev), OBJECT(cs), name,
errp);
g_free(name);
}
static void s390_machine_device_plug(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
s390_cpu_plug(hotplug_dev, dev, errp);
}
}
static HotplugHandler *s390_get_hotplug_handler(MachineState *machine,
DeviceState *dev)
{
if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
return HOTPLUG_HANDLER(machine);
}
return NULL;
}
static void ccw_machine_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
NMIClass *nc = NMI_CLASS(oc);
HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc);
mc->init = ccw_init;
mc->reset = s390_machine_reset;
@ -171,6 +202,8 @@ static void ccw_machine_class_init(ObjectClass *oc, void *data)
mc->no_sdcard = 1;
mc->use_sclp = 1;
mc->max_cpus = 255;
mc->get_hotplug_handler = s390_get_hotplug_handler;
hc->plug = s390_machine_device_plug;
nc->nmi_monitor_handler = s390_nmi;
}
@ -232,6 +265,7 @@ static const TypeInfo ccw_machine_info = {
.class_init = ccw_machine_class_init,
.interfaces = (InterfaceInfo[]) {
{ TYPE_NMI },
{ TYPE_HOTPLUG_HANDLER},
{ }
},
};

17
hw/s390x/s390-virtio.c
View File

@ -97,6 +97,7 @@ void s390_init_ipl_dev(const char *kernel_filename,
void s390_init_cpus(MachineState *machine)
{
int i;
gchar *name;
if (machine->cpu_model == NULL) {
machine->cpu_model = "host";
@ -104,12 +105,18 @@ void s390_init_cpus(MachineState *machine)
cpu_states = g_malloc0(sizeof(S390CPU *) * max_cpus);
for (i = 0; i < max_cpus; i++) {
name = g_strdup_printf("cpu[%i]", i);
object_property_add_link(OBJECT(machine), name, TYPE_S390_CPU,
(Object **) &cpu_states[i],
object_property_allow_set_link,
OBJ_PROP_LINK_UNREF_ON_RELEASE,
&error_abort);
g_free(name);
}
for (i = 0; i < smp_cpus; i++) {
S390CPU *cpu;
cpu = cpu_s390x_init(machine->cpu_model);
cpu_states[i] = cpu;
cpu_s390x_init(machine->cpu_model);
}
}