aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--backends/cryptodev.c19
-rw-r--r--hw/virtio/virtio-crypto.c2
-rw-r--r--include/sysemu/cryptodev.h23
3 files changed, 44 insertions, 0 deletions
diff --git a/backends/cryptodev.c b/backends/cryptodev.c
index 4a49f97..6a66c27 100644
--- a/backends/cryptodev.c
+++ b/backends/cryptodev.c
@@ -197,6 +197,22 @@ out:
error_propagate(errp, local_err);
}
+void cryptodev_backend_set_used(CryptoDevBackend *backend, bool used)
+{
+ backend->is_used = used;
+}
+
+bool cryptodev_backend_is_used(CryptoDevBackend *backend)
+{
+ return backend->is_used;
+}
+
+static bool
+cryptodev_backend_can_be_deleted(UserCreatable *uc, Error **errp)
+{
+ return !cryptodev_backend_is_used(CRYPTODEV_BACKEND(uc));
+}
+
static void cryptodev_backend_instance_init(Object *obj)
{
object_property_add(obj, "queues", "int",
@@ -209,7 +225,9 @@ static void cryptodev_backend_instance_init(Object *obj)
static void cryptodev_backend_finalize(Object *obj)
{
+ CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj);
+ cryptodev_backend_cleanup(backend, NULL);
}
static void
@@ -218,6 +236,7 @@ cryptodev_backend_class_init(ObjectClass *oc, void *data)
UserCreatableClass *ucc = USER_CREATABLE_CLASS(oc);
ucc->complete = cryptodev_backend_complete;
+ ucc->can_be_deleted = cryptodev_backend_can_be_deleted;
QTAILQ_INIT(&crypto_clients);
}
diff --git a/hw/virtio/virtio-crypto.c b/hw/virtio/virtio-crypto.c
index f872c87..6318fcf 100644
--- a/hw/virtio/virtio-crypto.c
+++ b/hw/virtio/virtio-crypto.c
@@ -799,6 +799,7 @@ static void virtio_crypto_device_realize(DeviceState *dev, Error **errp)
}
virtio_crypto_init_config(vdev);
+ cryptodev_backend_set_used(vcrypto->cryptodev, true);
}
static void virtio_crypto_device_unrealize(DeviceState *dev, Error **errp)
@@ -818,6 +819,7 @@ static void virtio_crypto_device_unrealize(DeviceState *dev, Error **errp)
g_free(vcrypto->vqs);
virtio_cleanup(vdev);
+ cryptodev_backend_set_used(vcrypto->cryptodev, false);
}
static const VMStateDescription vmstate_virtio_crypto = {
diff --git a/include/sysemu/cryptodev.h b/include/sysemu/cryptodev.h
index 84526c0..461389d 100644
--- a/include/sysemu/cryptodev.h
+++ b/include/sysemu/cryptodev.h
@@ -202,6 +202,8 @@ struct CryptoDevBackend {
Object parent_obj;
bool ready;
+ /* Tag the cryptodev backend is used by virtio-crypto or not */
+ bool is_used;
CryptoDevBackendConf conf;
};
@@ -295,4 +297,25 @@ int cryptodev_backend_crypto_operation(
void *opaque,
uint32_t queue_index, Error **errp);
+/**
+ * cryptodev_backend_set_used:
+ * @backend: the cryptodev backend object
+ * @used: ture or false
+ *
+ * Set the cryptodev backend is used by virtio-crypto or not
+ */
+void cryptodev_backend_set_used(CryptoDevBackend *backend, bool used);
+
+/**
+ * cryptodev_backend_is_used:
+ * @backend: the cryptodev backend object
+ *
+ * Return the status that the cryptodev backend is used
+ * by virtio-crypto or not
+ *
+ * Returns: true on used, or false on not used
+ */
+bool cryptodev_backend_is_used(CryptoDevBackend *backend);
+
+
#endif /* CRYPTODEV_H */