diff options
| author | Cornelia Huck <cohuck@redhat.com> | 2017-10-04 17:34:23 +0200 |
|---|---|---|
| committer | Cornelia Huck <cohuck@redhat.com> | 2017-10-06 10:53:02 +0200 |
| commit | 7aa4d85d2962a072931657bee964113727ebf0c8 (patch) | |
| tree | b0bcc290ce81accbfe99c971e339f1efb14f350a /hw/s390x/sclpcpu.c | |
| parent | e6cb60bf158fe7ea4505d760fdbb7abe4dbf4362 (diff) | |
s390x/sclp: mark sclp-cpu-hotplug as non-usercreatable
A TYPE_SCLP_CPU_HOTPLUG device for handling cpu hotplug events
is already created by the sclp event facility. Adding a second
TYPE_SCLP_CPU_HOTPLUG device via -device sclp-cpu-hotplug creates
an ambiguity in raise_irq_cpu_hotplug(), leading to a crash once
a cpu is hotplugged.
To fix this, disallow creating a sclp-cpu-hotplug device manually.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Diffstat (limited to 'hw/s390x/sclpcpu.c')
| -rw-r--r-- | hw/s390x/sclpcpu.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/hw/s390x/sclpcpu.c b/hw/s390x/sclpcpu.c index 023d059a46..3ee890b392 100644 --- a/hw/s390x/sclpcpu.c +++ b/hw/s390x/sclpcpu.c @@ -82,6 +82,12 @@ static void cpu_class_init(ObjectClass *oc, void *data) k->get_receive_mask = receive_mask; k->read_event_data = read_event_data; set_bit(DEVICE_CATEGORY_MISC, dc->categories); + /* + * Reason: raise_irq_cpu_hotplug() depends on an unique + * TYPE_SCLP_CPU_HOTPLUG device, which is already created + * by the sclp event facility + */ + dc->user_creatable = false; } static const TypeInfo sclp_cpu_info = { |