On Tue, May 19, 2026 at 03:15:48PM -0400, Stefan Hajnoczi wrote:
The vhost-user specification was updated to say that front-ends should
inject a kick after SET_VRING_KICK in case the back-end implements the
old spec wording which said vrings start when a kick is received. Do
this in QEMU's front-end.
An example scenario where this behavior helps: the back-end fails to
check if the vring has available buffers when SET_VRING_KICK is received
and the front-end stopped and then restarted the vring. In the case the
back-end may not notice the available buffers unless the front-end
injects a kick.
Signed-off-by: Stefan Hajnoczi <[email protected]>
---
hw/virtio/vhost-user.c | 24 +++++++++++++++++++++++-
1 file changed, 23 insertions(+), 1 deletion(-)
Reviewed-by: Stefano Garzarella <[email protected]>
