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authorGonglei <arei.gonglei@huawei.com>2016-12-22 11:12:38 +0800
committerMichael S. Tsirkin <mst@redhat.com>2017-01-10 07:02:52 +0200
commit46fd17054548b15b3b8a5991492f5f0dc37957d4 (patch)
tree7590dc9d3f7208e1976d6461f3373ef60c9709eb /backends
parentc159a4d1d0434fcf670f8684273bce0eca117a27 (diff)
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cryptodev: introduce a new is_used property
This property is used to Tag the cryptodev backend is used by virtio-crypto or not. Making cryptodev can't be hot unplugged when it's in use. Cleanup resources when cryptodev is finalized. Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'backends')
-rw-r--r--backends/cryptodev.c19
1 files changed, 19 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);
}