qemu

FORK: QEMU emulator
git clone https://git.neptards.moe/neptards/qemu.git
Log | Files | Refs | Submodules | LICENSE

vhost-vsock-ccw.c (2395B)

      1 /*
      2  * vhost vsock ccw implementation
      3  *
      4  * This work is licensed under the terms of the GNU GPL, version 2 or (at
      5  * your option) any later version. See the COPYING file in the top-level
      6  * directory.
      7  */
      8 
      9 #include "qemu/osdep.h"
     10 #include "hw/qdev-properties.h"
     11 #include "hw/virtio/virtio.h"
     12 #include "qapi/error.h"
     13 #include "qemu/module.h"
     14 #include "virtio-ccw.h"
     15 #include "hw/virtio/vhost-vsock.h"
     16 
     17 #define TYPE_VHOST_VSOCK_CCW "vhost-vsock-ccw"
     18 OBJECT_DECLARE_SIMPLE_TYPE(VHostVSockCCWState, VHOST_VSOCK_CCW)
     19 
     20 struct VHostVSockCCWState {
     21     VirtioCcwDevice parent_obj;
     22     VHostVSock vdev;
     23 };
     24 
     25 static Property vhost_vsock_ccw_properties[] = {
     26     DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
     27                        VIRTIO_CCW_MAX_REV),
     28     DEFINE_PROP_END_OF_LIST(),
     29 };
     30 
     31 static void vhost_vsock_ccw_realize(VirtioCcwDevice *ccw_dev, Error **errp)
     32 {
     33     VHostVSockCCWState *dev = VHOST_VSOCK_CCW(ccw_dev);
     34     DeviceState *vdev = DEVICE(&dev->vdev);
     35 
     36     qdev_realize(vdev, BUS(&ccw_dev->bus), errp);
     37 }
     38 
     39 static void vhost_vsock_ccw_class_init(ObjectClass *klass, void *data)
     40 {
     41     DeviceClass *dc = DEVICE_CLASS(klass);
     42     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
     43 
     44     k->realize = vhost_vsock_ccw_realize;
     45     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
     46     device_class_set_props(dc, vhost_vsock_ccw_properties);
     47 }
     48 
     49 static void vhost_vsock_ccw_instance_init(Object *obj)
     50 {
     51     VHostVSockCCWState *dev = VHOST_VSOCK_CCW(obj);
     52     VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj);
     53     VirtIODevice *virtio_dev;
     54 
     55     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
     56                                 TYPE_VHOST_VSOCK);
     57 
     58     virtio_dev = VIRTIO_DEVICE(&dev->vdev);
     59 
     60     /*
     61      * To avoid migration issues, we force virtio version 1 only when
     62      * legacy check is enabled in the new machine types (>= 5.1).
     63      */
     64     if (!virtio_legacy_check_disabled(virtio_dev)) {
     65         ccw_dev->force_revision_1 = true;
     66     }
     67 }
     68 
     69 static const TypeInfo vhost_vsock_ccw_info = {
     70     .name          = TYPE_VHOST_VSOCK_CCW,
     71     .parent        = TYPE_VIRTIO_CCW_DEVICE,
     72     .instance_size = sizeof(VHostVSockCCWState),
     73     .instance_init = vhost_vsock_ccw_instance_init,
     74     .class_init    = vhost_vsock_ccw_class_init,
     75 };
     76 
     77 static void vhost_vsock_ccw_register(void)
     78 {
     79     type_register_static(&vhost_vsock_ccw_info);
     80 }
     81 
     82 type_init(vhost_vsock_ccw_register)