From d2256070d207ec49a42bed6a99c2cf55a720fb43 Mon Sep 17 00:00:00 2001
From: Halil Pasic <pasic@linux.vnet.ibm.com>
Date: Thu, 3 Nov 2016 13:39:15 +0100
Subject: [PATCH] virtio-ccw: add virtio-crypto-ccw device

Wire up virtio-crypto for the CCW based VIRTIO.

Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
---
 hw/s390x/virtio-ccw.c | 61 +++++++++++++++++++++++++++++++++++++++++++
 hw/s390x/virtio-ccw.h | 12 +++++++++
 2 files changed, 73 insertions(+)

diff --git a/hw/s390x/virtio-ccw.c b/hw/s390x/virtio-ccw.c
index 32c414f23d..613d8c6615 100644
--- a/hw/s390x/virtio-ccw.c
+++ b/hw/s390x/virtio-ccw.c
@@ -894,6 +894,24 @@ static void virtio_ccw_rng_realize(VirtioCcwDevice *ccw_dev, Error **errp)
                              NULL);
 }
 
+static void virtio_ccw_crypto_realize(VirtioCcwDevice *ccw_dev, Error **errp)
+{
+    VirtIOCryptoCcw *dev = VIRTIO_CRYPTO_CCW(ccw_dev);
+    DeviceState *vdev = DEVICE(&dev->vdev);
+    Error *err = NULL;
+
+    qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
+    object_property_set_bool(OBJECT(vdev), true, "realized", &err);
+    if (err) {
+        error_propagate(errp, err);
+        return;
+    }
+
+    object_property_set_link(OBJECT(vdev),
+                             OBJECT(dev->vdev.conf.cryptodev), "cryptodev",
+                             NULL);
+}
+
 /* DeviceState to VirtioCcwDevice. Note: used on datapath,
  * be careful and test performance if you change this.
  */
@@ -1534,6 +1552,48 @@ static const TypeInfo virtio_ccw_rng = {
     .class_init    = virtio_ccw_rng_class_init,
 };
 
+static Property virtio_ccw_crypto_properties[] = {
+    DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
+    DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
+                    VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
+    DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
+                       VIRTIO_CCW_MAX_REV),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
+static void virtio_ccw_crypto_instance_init(Object *obj)
+{
+    VirtIOCryptoCcw *dev = VIRTIO_CRYPTO_CCW(obj);
+    VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj);
+
+    ccw_dev->force_revision_1 = true;
+    virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
+                                TYPE_VIRTIO_CRYPTO);
+
+    object_property_add_alias(obj, "cryptodev", OBJECT(&dev->vdev),
+                              "cryptodev", &error_abort);
+}
+
+static void virtio_ccw_crypto_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+    VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
+
+    k->realize = virtio_ccw_crypto_realize;
+    k->exit = virtio_ccw_exit;
+    dc->reset = virtio_ccw_reset;
+    dc->props = virtio_ccw_crypto_properties;
+    set_bit(DEVICE_CATEGORY_MISC, dc->categories);
+}
+
+static const TypeInfo virtio_ccw_crypto = {
+    .name          = TYPE_VIRTIO_CRYPTO_CCW,
+    .parent        = TYPE_VIRTIO_CCW_DEVICE,
+    .instance_size = sizeof(VirtIOCryptoCcw),
+    .instance_init = virtio_ccw_crypto_instance_init,
+    .class_init    = virtio_ccw_crypto_class_init,
+};
+
 static void virtio_ccw_busdev_realize(DeviceState *dev, Error **errp)
 {
     VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev;
@@ -1736,6 +1796,7 @@ static void virtio_ccw_register(void)
 #ifdef CONFIG_VHOST_VSOCK
     type_register_static(&vhost_vsock_ccw_info);
 #endif
+    type_register_static(&virtio_ccw_crypto);
 }
 
 type_init(virtio_ccw_register)
diff --git a/hw/s390x/virtio-ccw.h b/hw/s390x/virtio-ccw.h
index 6a04e94f66..41d4010378 100644
--- a/hw/s390x/virtio-ccw.h
+++ b/hw/s390x/virtio-ccw.h
@@ -22,6 +22,7 @@
 #endif
 #include "hw/virtio/virtio-balloon.h"
 #include "hw/virtio/virtio-rng.h"
+#include "hw/virtio/virtio-crypto.h"
 #include "hw/virtio/virtio-bus.h"
 #ifdef CONFIG_VHOST_VSOCK
 #include "hw/virtio/vhost-vsock.h"
@@ -183,6 +184,17 @@ typedef struct VirtIORNGCcw {
     VirtIORNG vdev;
 } VirtIORNGCcw;
 
+/* virtio-crypto-ccw */
+
+#define TYPE_VIRTIO_CRYPTO_CCW "virtio-crypto-ccw"
+#define VIRTIO_CRYPTO_CCW(obj) \
+        OBJECT_CHECK(VirtIOCryptoCcw, (obj), TYPE_VIRTIO_CRYPTO_CCW)
+
+typedef struct VirtIOCryptoCcw {
+    VirtioCcwDevice parent_obj;
+    VirtIOCrypto vdev;
+} VirtIOCryptoCcw;
+
 VirtIODevice *virtio_ccw_get_vdev(SubchDev *sch);
 
 #ifdef CONFIG_VIRTFS
-- 
2.39.2