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virtio-net: stop vhost backend on vmstop

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vhost net currently keeps running after vmstop,
which causes trouble as qemy does not check
for dirty pages anymore.
The fix is to simply keep vm and vhost running/stopped
status in sync.

Tested-by: David L Stevens <dlstevens@us.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Michael S. Tsirkin 2010-06-02 11:40:54 +03:00
parent e075e788c9
commit 7f97448122
1 changed files with 5 additions and 6 deletions
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11
hw/virtio-net.c
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@ -877,12 +877,11 @@ static void virtio_net_set_status(struct VirtIODevice *vdev, uint8_t status)
static void virtio_net_vmstate_change(void *opaque, int running, int reason)
{
VirtIONet *n = opaque;
if (!running) {
return;
}
/* This is called when vm is started, it will start vhost backend if
* appropriate e.g. after migration. */
virtio_net_set_status(&n->vdev, n->vdev.status);
uint8_t status = running ? VIRTIO_CONFIG_S_DRIVER_OK : 0;
/* This is called when vm is started/stopped,
* it will start/stop vhost backend if * appropriate
* e.g. after migration. */
virtio_net_set_status(&n->vdev, n->vdev.status & status);
}
VirtIODevice *virtio_net_init(DeviceState *dev, NICConf *conf)