aa8f057e74
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 <famz@redhat.com> Message-Id: <20170714021509.23681-10-famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
80 lines
2.4 KiB
C
80 lines
2.4 KiB
C
/*
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* Virtio crypto device
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*
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* Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
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*
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* Authors:
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* Gonglei <arei.gonglei@huawei.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or
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* (at your option) any later version. See the COPYING file in the
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* top-level directory.
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*
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*/
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#include "qemu/osdep.h"
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#include "hw/pci/pci.h"
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#include "hw/virtio/virtio.h"
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#include "hw/virtio/virtio-bus.h"
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#include "hw/virtio/virtio-pci.h"
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#include "hw/virtio/virtio-crypto.h"
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#include "qapi/error.h"
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static Property virtio_crypto_pci_properties[] = {
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DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
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VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
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DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2),
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DEFINE_PROP_END_OF_LIST(),
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};
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static void virtio_crypto_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
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{
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VirtIOCryptoPCI *vcrypto = VIRTIO_CRYPTO_PCI(vpci_dev);
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DeviceState *vdev = DEVICE(&vcrypto->vdev);
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if (vcrypto->vdev.conf.cryptodev == NULL) {
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error_setg(errp, "'cryptodev' parameter expects a valid object");
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return;
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}
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qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
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virtio_pci_force_virtio_1(vpci_dev);
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object_property_set_bool(OBJECT(vdev), true, "realized", errp);
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object_property_set_link(OBJECT(vcrypto),
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OBJECT(vcrypto->vdev.conf.cryptodev), "cryptodev",
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NULL);
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}
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static void virtio_crypto_pci_class_init(ObjectClass *klass, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(klass);
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VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
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PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
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k->realize = virtio_crypto_pci_realize;
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set_bit(DEVICE_CATEGORY_MISC, dc->categories);
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dc->props = virtio_crypto_pci_properties;
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pcidev_k->class_id = PCI_CLASS_OTHERS;
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}
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static void virtio_crypto_initfn(Object *obj)
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{
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VirtIOCryptoPCI *dev = VIRTIO_CRYPTO_PCI(obj);
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virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
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TYPE_VIRTIO_CRYPTO);
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}
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static const TypeInfo virtio_crypto_pci_info = {
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.name = TYPE_VIRTIO_CRYPTO_PCI,
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.parent = TYPE_VIRTIO_PCI,
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.instance_size = sizeof(VirtIOCryptoPCI),
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.instance_init = virtio_crypto_initfn,
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.class_init = virtio_crypto_pci_class_init,
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};
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static void virtio_crypto_pci_register_types(void)
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{
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type_register_static(&virtio_crypto_pci_info);
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}
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type_init(virtio_crypto_pci_register_types)
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