From: Gonglei <arei.gong...@huawei.com>
Add the check condition for cryptodev device in order
to avoid one cryptodev device is used by multiple
virtio crypto devices.
Signed-off-by: Gonglei <arei.gong...@huawei.com>
Reviewed-by: Michael S. Tsirkin <m...@redhat.com>
Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
---
hw/virtio/virtio-crypto.c | 16 +++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)
diff --git a/hw/virtio/virtio-crypto.c b/hw/virtio/virtio-crypto.c
index 9213258..fc30bc3 100644
--- a/hw/virtio/virtio-crypto.c
+++ b/hw/virtio/virtio-crypto.c
@@ -877,6 +877,20 @@ static void virtio_crypto_class_init(ObjectClass *klass,
void *data)
vdc->reset = virtio_crypto_reset;
}
+static void
+virtio_crypto_check_cryptodev_is_used(Object *obj, const char *name,
+ Object *val, Error **errp)
+{
+ if (cryptodev_backend_is_used(CRYPTODEV_BACKEND(val))) {
+ char *path = object_get_canonical_path_component(val);
+ error_setg(errp,
+ "can't use already used cryptodev backend: %s", path);
+ g_free(path);
+ } else {
+ qdev_prop_allow_set_link_before_realize(obj, name, val, errp);
+ }
+}
+
static void virtio_crypto_instance_init(Object *obj)
{
VirtIOCrypto *vcrypto = VIRTIO_CRYPTO(obj);
@@ -890,7 +904,7 @@ static void virtio_crypto_instance_init(Object *obj)
object_property_add_link(obj, "cryptodev",
TYPE_CRYPTODEV_BACKEND,
(Object **)&vcrypto->conf.cryptodev,
- qdev_prop_allow_set_link_before_realize,
+ virtio_crypto_check_cryptodev_is_used,
OBJ_PROP_LINK_UNREF_ON_RELEASE, NULL);
}
--
MST
