mirror of https://gitee.com/openkylin/qemu.git
95 lines
2.8 KiB
C
95 lines
2.8 KiB
C
/*
|
|
* 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/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"
|
|
|
|
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));
|
|
if (!virtio_pci_force_virtio_1(vpci_dev, errp)) {
|
|
return;
|
|
}
|
|
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)
|