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/*
* Virtio crypto device
*
* Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
*
* Authors:
* Gonglei <arei.gonglei@huawei.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or
* (at your option) any later version. See the COPYING file in the
* top-level directory.
*
*/
#include "qemu/osdep.h"
#include "hw/pci/pci.h"
#include "hw/qdev-properties.h"
#include "hw/virtio/virtio.h"
#include "hw/virtio/virtio-bus.h"
#include "hw/virtio/virtio-pci.h"
#include "hw/virtio/virtio-crypto.h"
#include "qapi/error.h"
#include "qemu/module.h"
typedef struct VirtIOCryptoPCI VirtIOCryptoPCI;
/*
* virtio-crypto-pci: This extends VirtioPCIProxy.
*/
#define TYPE_VIRTIO_CRYPTO_PCI "virtio-crypto-pci"
#define VIRTIO_CRYPTO_PCI(obj) \
OBJECT_CHECK(VirtIOCryptoPCI, (obj), TYPE_VIRTIO_CRYPTO_PCI)
struct VirtIOCryptoPCI {
VirtIOPCIProxy parent_obj;
VirtIOCrypto vdev;
};
static Property virtio_crypto_pci_properties[] = {
DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2),
DEFINE_PROP_END_OF_LIST(),
};
static void virtio_crypto_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
{
VirtIOCryptoPCI *vcrypto = VIRTIO_CRYPTO_PCI(vpci_dev);
DeviceState *vdev = DEVICE(&vcrypto->vdev);
if (vcrypto->vdev.conf.cryptodev == NULL) {
error_setg(errp, "'cryptodev' parameter expects a valid object");
return;
}
qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
virtio_pci_force_virtio_1(vpci_dev);
object_property_set_bool(OBJECT(vdev), true, "realized", errp);
object_property_set_link(OBJECT(vcrypto),
OBJECT(vcrypto->vdev.conf.cryptodev), "cryptodev",
NULL);
}
static void virtio_crypto_pci_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
k->realize = virtio_crypto_pci_realize;
set_bit(DEVICE_CATEGORY_MISC, dc->categories);
dc->props = virtio_crypto_pci_properties;
pcidev_k->class_id = PCI_CLASS_OTHERS;
}
static void virtio_crypto_initfn(Object *obj)
{
VirtIOCryptoPCI *dev = VIRTIO_CRYPTO_PCI(obj);
virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
TYPE_VIRTIO_CRYPTO);
}
static const VirtioPCIDeviceTypeInfo virtio_crypto_pci_info = {
.generic_name = TYPE_VIRTIO_CRYPTO_PCI,
.instance_size = sizeof(VirtIOCryptoPCI),
.instance_init = virtio_crypto_initfn,
.class_init = virtio_crypto_pci_class_init,
};
static void virtio_crypto_pci_register_types(void)
{
virtio_pci_types_register(&virtio_crypto_pci_info);
}
type_init(virtio_crypto_pci_register_types)
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