cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
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virtio-ccw-scsi.c (3681B)

      1/*
      2 * virtio ccw scsi implementation
      3 *
      4 * Copyright 2012, 2015 IBM Corp.
      5 * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
      6 *
      7 * This work is licensed under the terms of the GNU GPL, version 2 or (at
      8 * your option) any later version. See the COPYING file in the top-level
      9 * directory.
     10 */
     11
     12#include "qemu/osdep.h"
     13#include "hw/qdev-properties.h"
     14#include "hw/virtio/virtio.h"
     15#include "qapi/error.h"
     16#include "qemu/module.h"
     17#include "virtio-ccw.h"
     18
     19static void virtio_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp)
     20{
     21    VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(ccw_dev);
     22    DeviceState *vdev = DEVICE(&dev->vdev);
     23    DeviceState *qdev = DEVICE(ccw_dev);
     24    char *bus_name;
     25
     26    /*
     27     * For command line compatibility, this sets the virtio-scsi-device bus
     28     * name as before.
     29     */
     30    if (qdev->id) {
     31        bus_name = g_strdup_printf("%s.0", qdev->id);
     32        virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
     33        g_free(bus_name);
     34    }
     35
     36    qdev_realize(vdev, BUS(&ccw_dev->bus), errp);
     37}
     38
     39static void virtio_ccw_scsi_instance_init(Object *obj)
     40{
     41    VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(obj);
     42
     43    virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
     44                                TYPE_VIRTIO_SCSI);
     45}
     46
     47static Property virtio_ccw_scsi_properties[] = {
     48    DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
     49                    VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
     50    DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
     51                       VIRTIO_CCW_MAX_REV),
     52    DEFINE_PROP_END_OF_LIST(),
     53};
     54
     55static void virtio_ccw_scsi_class_init(ObjectClass *klass, void *data)
     56{
     57    DeviceClass *dc = DEVICE_CLASS(klass);
     58    VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
     59
     60    k->realize = virtio_ccw_scsi_realize;
     61    device_class_set_props(dc, virtio_ccw_scsi_properties);
     62    set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
     63}
     64
     65static const TypeInfo virtio_ccw_scsi = {
     66    .name          = TYPE_VIRTIO_SCSI_CCW,
     67    .parent        = TYPE_VIRTIO_CCW_DEVICE,
     68    .instance_size = sizeof(VirtIOSCSICcw),
     69    .instance_init = virtio_ccw_scsi_instance_init,
     70    .class_init    = virtio_ccw_scsi_class_init,
     71};
     72
     73#ifdef CONFIG_VHOST_SCSI
     74
     75static void vhost_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp)
     76{
     77    VHostSCSICcw *dev = VHOST_SCSI_CCW(ccw_dev);
     78    DeviceState *vdev = DEVICE(&dev->vdev);
     79
     80    qdev_realize(vdev, BUS(&ccw_dev->bus), errp);
     81}
     82
     83static void vhost_ccw_scsi_instance_init(Object *obj)
     84{
     85    VHostSCSICcw *dev = VHOST_SCSI_CCW(obj);
     86
     87    virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
     88                                TYPE_VHOST_SCSI);
     89}
     90
     91static Property vhost_ccw_scsi_properties[] = {
     92    DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
     93                       VIRTIO_CCW_MAX_REV),
     94    DEFINE_PROP_END_OF_LIST(),
     95};
     96
     97static void vhost_ccw_scsi_class_init(ObjectClass *klass, void *data)
     98{
     99    DeviceClass *dc = DEVICE_CLASS(klass);
    100    VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
    101
    102    k->realize = vhost_ccw_scsi_realize;
    103    device_class_set_props(dc, vhost_ccw_scsi_properties);
    104    set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
    105}
    106
    107static const TypeInfo vhost_ccw_scsi = {
    108    .name          = TYPE_VHOST_SCSI_CCW,
    109    .parent        = TYPE_VIRTIO_CCW_DEVICE,
    110    .instance_size = sizeof(VHostSCSICcw),
    111    .instance_init = vhost_ccw_scsi_instance_init,
    112    .class_init    = vhost_ccw_scsi_class_init,
    113};
    114
    115#endif
    116
    117static void virtio_ccw_scsi_register(void)
    118{
    119    type_register_static(&virtio_ccw_scsi);
    120#ifdef CONFIG_VHOST_SCSI
    121    type_register_static(&vhost_ccw_scsi);
    122#endif
    123}
    124
    125type_init(virtio_ccw_scsi_register)