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virtio-ccw: Wire up virtio-rng. 

Make virtio-rng devices available for s390-ccw-virtio machines.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
This commit is contained in:
Cornelia Huck 2013-03-04 13:06:56 +01:00
parent b8a205f2ed
commit 2362ecc5c6
2 changed files with 62 additions and 0 deletions
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60
hw/s390x/virtio-ccw.c
View File

@ -642,6 +642,30 @@ static int virtio_ccw_scsi_exit(VirtioCcwDevice *dev)
return virtio_ccw_exit(dev);
}
static int virtio_ccw_rng_init(VirtioCcwDevice *dev)
{
VirtIODevice *vdev;
if (dev->rng.rng == NULL) {
dev->rng.default_backend = RNG_RANDOM(object_new(TYPE_RNG_RANDOM));
object_property_add_child(OBJECT(dev), "default-backend",
OBJECT(dev->rng.default_backend), NULL);
object_property_set_link(OBJECT(dev), OBJECT(dev->rng.default_backend),
"rng", NULL);
}
vdev = virtio_rng_init((DeviceState *)dev, &dev->rng);
if (!vdev) {
return -1;
}
return virtio_ccw_device_init(dev, vdev);
}
static int virtio_ccw_rng_exit(VirtioCcwDevice *dev)
{
virtio_rng_exit(dev->vdev);
return virtio_ccw_exit(dev);
}
/* DeviceState to VirtioCcwDevice. Note: used on datapath,
* be careful and test performance if you change this.
*/
@ -831,6 +855,41 @@ static const TypeInfo virtio_ccw_scsi = {
.class_init = virtio_ccw_scsi_class_init,
};
static void virtio_ccw_rng_initfn(Object *obj)
{
VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(obj);
object_property_add_link(obj, "rng", TYPE_RNG_BACKEND,
(Object **)&dev->rng.rng, NULL);
}
static Property virtio_ccw_rng_properties[] = {
DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id),
DEFINE_VIRTIO_COMMON_FEATURES(VirtioCcwDevice, host_features[0]),
DEFINE_PROP_UINT64("max-bytes", VirtioCcwDevice, rng.max_bytes, INT64_MAX),
DEFINE_PROP_UINT32("period", VirtioCcwDevice, rng.period_ms, 1 << 16),
DEFINE_PROP_END_OF_LIST(),
};
static void virtio_ccw_rng_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
k->init = virtio_ccw_rng_init;
k->exit = virtio_ccw_rng_exit;
dc->reset = virtio_ccw_reset;
dc->props = virtio_ccw_rng_properties;
}
static const TypeInfo virtio_ccw_rng = {
.name = "virtio-rng-ccw",
.parent = TYPE_VIRTIO_CCW_DEVICE,
.instance_size = sizeof(VirtioCcwDevice),
.instance_init = virtio_ccw_rng_initfn,
.class_init = virtio_ccw_rng_class_init,
};
static int virtio_ccw_busdev_init(DeviceState *dev)
{
VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev;
@ -953,6 +1012,7 @@ static void virtio_ccw_register(void)
type_register_static(&virtio_ccw_net);
type_register_static(&virtio_ccw_balloon);
type_register_static(&virtio_ccw_scsi);
type_register_static(&virtio_ccw_rng);
type_register_static(&virtual_css_bridge_info);
}

2
hw/s390x/virtio-ccw.h
View File

@ -16,6 +16,7 @@
#include <hw/virtio-net.h>
#include <hw/virtio-serial.h>
#include <hw/virtio-scsi.h>
#include <hw/virtio-rng.h>
#include <hw/virtio-bus.h>
#define VIRTUAL_CSSID 0xfe
@ -77,6 +78,7 @@ struct VirtioCcwDevice {
virtio_serial_conf serial;
virtio_net_conf net;
VirtIOSCSIConf scsi;
VirtIORNGConf rng;
VirtioBusState bus;
/* Guest provided values: */
hwaddr indicators;