From: Eugenio Pérez Date: Thu, 12 May 2022 17:57:44 +0000 (+0200) Subject: vdpa: Fix bad index calculus at vhost_vdpa_get_vring_base X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=639036477ef890958415967e753ca2cbb348c16c;p=qemu.git vdpa: Fix bad index calculus at vhost_vdpa_get_vring_base Fixes: 6d0b222666 ("vdpa: Adapt vhost_vdpa_get_vring_base to SVQ") Acked-by: Jason Wang Signed-off-by: Eugenio Pérez Message-Id: <20220512175747.142058-4-eperezma@redhat.com> Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c index a30510ed17..493269b0b5 100644 --- a/hw/virtio/vhost-vdpa.c +++ b/hw/virtio/vhost-vdpa.c @@ -1172,11 +1172,11 @@ static int vhost_vdpa_get_vring_base(struct vhost_dev *dev, struct vhost_vring_state *ring) { struct vhost_vdpa *v = dev->opaque; + int vdpa_idx = ring->index - dev->vq_index; int ret; if (v->shadow_vqs_enabled) { - VhostShadowVirtqueue *svq = g_ptr_array_index(v->shadow_vqs, - ring->index); + VhostShadowVirtqueue *svq = g_ptr_array_index(v->shadow_vqs, vdpa_idx); /* * Setting base as last used idx, so destination will see as available