From aa8f057e74ae08014736a690ff41f76c756f75f1 Mon Sep 17 00:00:00 2001 From: Fam Zheng Date: Fri, 14 Jul 2017 10:14:58 +0800 Subject: [PATCH] virtio-crypto: Convert to DEFINE_PROP_LINK Unlike other object_property_add_link() occurrences in virtio devices, virtio-crypto checks the "in use" state of the linked backend object in addition to qdev_prop_allow_set_link_before_realize. To convert it without needing to specialize DEFINE_PROP_LINK which always uses the qdev callback, move the "in use" check to device realize time. Signed-off-by: Fam Zheng Message-Id: <20170714021509.23681-10-famz@redhat.com> Signed-off-by: Paolo Bonzini --- hw/s390x/virtio-ccw.c | 3 --- hw/virtio/virtio-crypto-pci.c | 2 -- hw/virtio/virtio-crypto.c | 27 +++++++-------------------- 3 files changed, 7 insertions(+), 25 deletions(-) diff --git a/hw/s390x/virtio-ccw.c b/hw/s390x/virtio-ccw.c index a492d0ffa7..c07ddb1c94 100644 --- a/hw/s390x/virtio-ccw.c +++ b/hw/s390x/virtio-ccw.c @@ -1594,9 +1594,6 @@ static void virtio_ccw_crypto_instance_init(Object *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) diff --git a/hw/virtio/virtio-crypto-pci.c b/hw/virtio/virtio-crypto-pci.c index 422aca3a98..bf64996e48 100644 --- a/hw/virtio/virtio-crypto-pci.c +++ b/hw/virtio/virtio-crypto-pci.c @@ -62,8 +62,6 @@ static void virtio_crypto_initfn(Object *obj) 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 const TypeInfo virtio_crypto_pci_info = { diff --git a/hw/virtio/virtio-crypto.c b/hw/virtio/virtio-crypto.c index 2590893016..19c82e0432 100644 --- a/hw/virtio/virtio-crypto.c +++ b/hw/virtio/virtio-crypto.c @@ -781,6 +781,11 @@ static void virtio_crypto_device_realize(DeviceState *dev, Error **errp) if (vcrypto->cryptodev == NULL) { error_setg(errp, "'cryptodev' parameter expects a valid object"); return; + } else if (cryptodev_backend_is_used(vcrypto->cryptodev)) { + char *path = object_get_canonical_path_component(OBJECT(vcrypto->conf.cryptodev)); + error_setg(errp, "can't use already used cryptodev backend: %s", path); + g_free(path); + return; } vcrypto->max_queues = MAX(vcrypto->cryptodev->conf.peers.queues, 1); @@ -845,6 +850,8 @@ static const VMStateDescription vmstate_virtio_crypto = { }; static Property virtio_crypto_properties[] = { + DEFINE_PROP_LINK("cryptodev", VirtIOCrypto, conf.cryptodev, + TYPE_CRYPTODEV_BACKEND, CryptoDevBackend *), DEFINE_PROP_END_OF_LIST(), }; @@ -888,20 +895,6 @@ static void virtio_crypto_class_init(ObjectClass *klass, void *data) vdc->reset = virtio_crypto_reset; } -static void -virtio_crypto_check_cryptodev_is_used(const 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); @@ -911,12 +904,6 @@ static void virtio_crypto_instance_init(Object *obj) * Can be overriden with virtio_crypto_set_config_size. */ vcrypto->config_size = sizeof(struct virtio_crypto_config); - - object_property_add_link(obj, "cryptodev", - TYPE_CRYPTODEV_BACKEND, - (Object **)&vcrypto->conf.cryptodev, - virtio_crypto_check_cryptodev_is_used, - OBJ_PROP_LINK_UNREF_ON_RELEASE, NULL); } static const TypeInfo virtio_crypto_info = {