From 2f8200efe7300190ad88d8238b119c098b6544bd Mon Sep 17 00:00:00 2001 From: Jason Wang Date: Wed, 21 Dec 2022 14:21:46 +0800 Subject: vdpa_sim: use weak barriers MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit vDPA simulators are software emulated device, so let's switch to use weak barriers to avoid extra overhead in the driver. Signed-off-by: Jason Wang Message-Id: <20221221062146.15356-1-jasowang@redhat.com> Signed-off-by: Michael S. Tsirkin Reviewed-by: Stefano Garzarella Acked-by: Eugenio Pérez --- drivers/vdpa/vdpa_sim/vdpa_sim.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/vdpa/vdpa_sim') diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c index fb9000131ac0..88eab8ded751 100644 --- a/drivers/vdpa/vdpa_sim/vdpa_sim.c +++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c @@ -68,7 +68,7 @@ static void vdpasim_queue_ready(struct vdpasim *vdpasim, unsigned int idx) struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx]; uint16_t last_avail_idx = vq->vring.last_avail_idx; - vringh_init_iotlb(&vq->vring, vdpasim->features, vq->num, false, + vringh_init_iotlb(&vq->vring, vdpasim->features, vq->num, true, (struct vring_desc *)(uintptr_t)vq->desc_addr, (struct vring_avail *) (uintptr_t)vq->driver_addr, -- cgit v1.2.3