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-rw-r--r--hw/virtio.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/hw/virtio.c b/hw/virtio.c
index 07dbf86..1d20be2 100644
--- a/hw/virtio.c
+++ b/hw/virtio.c
@@ -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;
}
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