On Thu, Feb 23, 2023 at 4:51 PM Laurent Vivier <lviv...@redhat.com> wrote: > > Hi, > > this patch fixes a QEMU crash, could it be merged?
Acked-by: Jason Wang <jasow...@redhat.com> I think it should go with Michael's tree. Thanks > > Thanks, > Laurent > > On 2/9/23 18:00, Eugenio Pérez wrote: > > Not stopping them leave the device in a bad state when virtio-net > > fronted device is unplugged with device_del monitor command. > > > > This is not triggable in regular poweroff or qemu forces shutdown > > because cleanup is called right after vhost_vdpa_dev_start(false). But > > devices hot unplug does not call vdpa device cleanups. This lead to all > > the vhost_vdpa devices without stop the SVQ but the last. > > > > Fix it and clean the code, making it symmetric with > > vhost_vdpa_svqs_start. > > > > Fixes: dff4426fa656 ("vhost: Add Shadow VirtQueue kick forwarding > > capabilities") > > Reported-by: Lei Yang <leiy...@redhat.com> > > Signed-off-by: Eugenio Pérez <epere...@redhat.com> > > --- > > hw/virtio/vhost-vdpa.c | 17 ++--------------- > > 1 file changed, 2 insertions(+), 15 deletions(-) > > > > diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c > > index 542e003101..df3a1e92ac 100644 > > --- a/hw/virtio/vhost-vdpa.c > > +++ b/hw/virtio/vhost-vdpa.c > > @@ -689,26 +689,11 @@ static int vhost_vdpa_get_device_id(struct vhost_dev > > *dev, > > return ret; > > } > > > > -static void vhost_vdpa_reset_svq(struct vhost_vdpa *v) > > -{ > > - if (!v->shadow_vqs_enabled) { > > - return; > > - } > > - > > - for (unsigned i = 0; i < v->shadow_vqs->len; ++i) { > > - VhostShadowVirtqueue *svq = g_ptr_array_index(v->shadow_vqs, i); > > - vhost_svq_stop(svq); > > - } > > -} > > - > > static int vhost_vdpa_reset_device(struct vhost_dev *dev) > > { > > - struct vhost_vdpa *v = dev->opaque; > > int ret; > > uint8_t status = 0; > > > > - vhost_vdpa_reset_svq(v); > > - > > ret = vhost_vdpa_call(dev, VHOST_VDPA_SET_STATUS, &status); > > trace_vhost_vdpa_reset_device(dev, status); > > return ret; > > @@ -1100,6 +1085,8 @@ static void vhost_vdpa_svqs_stop(struct vhost_dev > > *dev) > > > > for (unsigned i = 0; i < v->shadow_vqs->len; ++i) { > > VhostShadowVirtqueue *svq = g_ptr_array_index(v->shadow_vqs, i); > > + > > + vhost_svq_stop(svq); > > vhost_vdpa_svq_unmap_rings(dev, svq); > > > > event_notifier_cleanup(&svq->hdev_kick); >