From 46fd17054548b15b3b8a5991492f5f0dc37957d4 Mon Sep 17 00:00:00 2001 From: Gonglei Date: Thu, 22 Dec 2016 11:12:38 +0800 Subject: 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 Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- backends/cryptodev.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'backends') 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); } -- cgit v1.1