cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
Log | Files | Refs | Submodules | LICENSE | sfeed.txt

virtio-crypto-pci.c (2736B)

      1/*
      2 * Virtio crypto device
      3 *
      4 * Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
      5 *
      6 * Authors:
      7 *    Gonglei <arei.gonglei@huawei.com>
      8 *
      9 * This work is licensed under the terms of the GNU GPL, version 2 or
     10 * (at your option) any later version.  See the COPYING file in the
     11 * top-level directory.
     12 *
     13 */
     14
     15#include "qemu/osdep.h"
     16#include "hw/pci/pci.h"
     17#include "hw/qdev-properties.h"
     18#include "hw/virtio/virtio.h"
     19#include "hw/virtio/virtio-bus.h"
     20#include "hw/virtio/virtio-pci.h"
     21#include "hw/virtio/virtio-crypto.h"
     22#include "qapi/error.h"
     23#include "qemu/module.h"
     24#include "qom/object.h"
     25
     26typedef struct VirtIOCryptoPCI VirtIOCryptoPCI;
     27
     28/*
     29 * virtio-crypto-pci: This extends VirtioPCIProxy.
     30 */
     31#define TYPE_VIRTIO_CRYPTO_PCI "virtio-crypto-pci"
     32DECLARE_INSTANCE_CHECKER(VirtIOCryptoPCI, VIRTIO_CRYPTO_PCI,
     33                         TYPE_VIRTIO_CRYPTO_PCI)
     34
     35struct VirtIOCryptoPCI {
     36    VirtIOPCIProxy parent_obj;
     37    VirtIOCrypto vdev;
     38};
     39
     40static Property virtio_crypto_pci_properties[] = {
     41    DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
     42                    VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
     43    DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2),
     44    DEFINE_PROP_END_OF_LIST(),
     45};
     46
     47static void virtio_crypto_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
     48{
     49    VirtIOCryptoPCI *vcrypto = VIRTIO_CRYPTO_PCI(vpci_dev);
     50    DeviceState *vdev = DEVICE(&vcrypto->vdev);
     51
     52    if (vcrypto->vdev.conf.cryptodev == NULL) {
     53        error_setg(errp, "'cryptodev' parameter expects a valid object");
     54        return;
     55    }
     56
     57    virtio_pci_force_virtio_1(vpci_dev);
     58    if (!qdev_realize(vdev, BUS(&vpci_dev->bus), errp)) {
     59        return;
     60    }
     61}
     62
     63static void virtio_crypto_pci_class_init(ObjectClass *klass, void *data)
     64{
     65    DeviceClass *dc = DEVICE_CLASS(klass);
     66    VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
     67    PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
     68
     69    k->realize = virtio_crypto_pci_realize;
     70    set_bit(DEVICE_CATEGORY_MISC, dc->categories);
     71    device_class_set_props(dc, virtio_crypto_pci_properties);
     72    pcidev_k->class_id = PCI_CLASS_OTHERS;
     73}
     74
     75static void virtio_crypto_initfn(Object *obj)
     76{
     77    VirtIOCryptoPCI *dev = VIRTIO_CRYPTO_PCI(obj);
     78
     79    virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
     80                                TYPE_VIRTIO_CRYPTO);
     81}
     82
     83static const VirtioPCIDeviceTypeInfo virtio_crypto_pci_info = {
     84    .generic_name  = TYPE_VIRTIO_CRYPTO_PCI,
     85    .instance_size = sizeof(VirtIOCryptoPCI),
     86    .instance_init = virtio_crypto_initfn,
     87    .class_init    = virtio_crypto_pci_class_init,
     88};
     89
     90static void virtio_crypto_pci_register_types(void)
     91{
     92    virtio_pci_types_register(&virtio_crypto_pci_info);
     93}
     94type_init(virtio_crypto_pci_register_types)