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virtio: move vmstate change tracking to core

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Move tracking vmstate change from virtio-net to virtio.c
as it is going to be used by virito-blk and virtio-pci
for the ioeventfd support.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Michael S. Tsirkin 2011-01-10 14:28:40 +02:00
parent 3dbca8e6a7
commit 85cf2a8d74
3 changed files with 32 additions and 21 deletions
Download patch file Download diff file Expand all files Collapse all files

22
hw/virtio.c
View file

@ -743,11 +743,31 @@ int virtio_load(VirtIODevice *vdev, QEMUFile *f)
void virtio_cleanup(VirtIODevice *vdev)
{
qemu_del_vm_change_state_handler(vdev->vmstate);
if (vdev->config)
qemu_free(vdev->config);
qemu_free(vdev->vq);
}
static void virtio_vmstate_change(void *opaque, int running, int reason)
{
VirtIODevice *vdev = opaque;
bool backend_run = running && (vdev->status & VIRTIO_CONFIG_S_DRIVER_OK);
vdev->vm_running = running;
if (backend_run) {
virtio_set_status(vdev, vdev->status);
}
if (vdev->binding->vmstate_change) {
vdev->binding->vmstate_change(vdev->binding_opaque, backend_run);
}
if (!backend_run) {
virtio_set_status(vdev, vdev->status);
}
}
VirtIODevice *virtio_common_init(const char *name, uint16_t device_id,
size_t config_size, size_t struct_size)
{
@ -774,6 +794,8 @@ VirtIODevice *virtio_common_init(const char *name, uint16_t device_id,
else
vdev->config = NULL;
vdev->vmstate = qemu_add_vm_change_state_handler(virtio_vmstate_change, vdev);
return vdev;
}