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s390x/cpu: Allow hotplug of CPUs

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Implement cpu hotplug routine and add the machine hook.

Signed-off-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Message-Id: <1457112875-5209-8-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 12:34:35 -05:00 committed by Cornelia Huck
parent 96b1a8bb55
commit a006b67fe4
2 changed files with 17 additions and 0 deletions
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10
hw/s390x/s390-virtio-ccw.c
View File

@ -186,6 +186,15 @@ static HotplugHandler *s390_get_hotplug_handler(MachineState *machine,
return NULL;
}
static void s390_hot_add_cpu(const int64_t id, Error **errp)
{
MachineState *machine = MACHINE(qdev_get_machine());
Error *err = NULL;
s390x_new_cpu(machine->cpu_model, id, &err);
error_propagate(errp, err);
}
static void ccw_machine_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
@ -194,6 +203,7 @@ static void ccw_machine_class_init(ObjectClass *oc, void *data)
mc->init = ccw_init;
mc->reset = s390_machine_reset;
mc->hot_add_cpu = s390_hot_add_cpu;
mc->block_default_type = IF_VIRTIO;
mc->no_cdrom = 1;
mc->no_floppy = 1;

7
target-s390x/cpu.c
View File

@ -34,6 +34,7 @@
#ifndef CONFIG_USER_ONLY
#include "sysemu/arch_init.h"
#include "sysemu/sysemu.h"
#include "hw/s390x/sclp.h"
#endif
#define CR0_RESET 0xE0UL
@ -240,6 +241,12 @@ static void s390_cpu_realizefn(DeviceState *dev, Error **errp)
scc->parent_realize(dev, &err);
#if !defined(CONFIG_USER_ONLY)
if (dev->hotplugged) {
raise_irq_cpu_hotplug();
}
#endif
out:
error_propagate(errp, err);
}