From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Eugenio=20P=C3=A9rez?= Date: Thu, 12 May 2022 19:57:44 +0200 Subject: [PATCH] vdpa: Fix bad index calculus at vhost_vdpa_get_vring_base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 (cherry-picked from commit 639036477ef890958415967e753ca2cbb348c16c) Signed-off-by: Fabian Ebner --- hw/virtio/vhost-vdpa.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c index 8adf7c0b92..8555a84f87 100644 --- a/hw/virtio/vhost-vdpa.c +++ b/hw/virtio/vhost-vdpa.c @@ -1170,11 +1170,11 @@ 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