From: Eugenio Pérez Date: Wed, 20 Jul 2022 06:59:37 +0000 (+0200) Subject: vhost: Expose vhost_svq_add X-Git-Tag: qemu-xen-4.18.0-rc5~604^2~13 X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=d0291f3f284d3bc220cdb13b0d8ac8a44eb5fd4c;p=qemu-xen.git vhost: Expose vhost_svq_add This allows external parts of SVQ to forward custom buffers to the device. Signed-off-by: Eugenio Pérez Reviewed-by: Michael S. Tsirkin Signed-off-by: Jason Wang --- diff --git a/hw/virtio/vhost-shadow-virtqueue.c b/hw/virtio/vhost-shadow-virtqueue.c index 1669b1fcd1..c3a75ca89e 100644 --- a/hw/virtio/vhost-shadow-virtqueue.c +++ b/hw/virtio/vhost-shadow-virtqueue.c @@ -238,9 +238,9 @@ static void vhost_svq_kick(VhostShadowVirtqueue *svq) * * Return -EINVAL if element is invalid, -ENOSPC if dev queue is full */ -static int vhost_svq_add(VhostShadowVirtqueue *svq, const struct iovec *out_sg, - size_t out_num, const struct iovec *in_sg, - size_t in_num, VirtQueueElement *elem) +int vhost_svq_add(VhostShadowVirtqueue *svq, const struct iovec *out_sg, + size_t out_num, const struct iovec *in_sg, size_t in_num, + VirtQueueElement *elem) { unsigned qemu_head; unsigned ndescs = in_num + out_num; diff --git a/hw/virtio/vhost-shadow-virtqueue.h b/hw/virtio/vhost-shadow-virtqueue.h index d9fc1f1799..dd78f4bec2 100644 --- a/hw/virtio/vhost-shadow-virtqueue.h +++ b/hw/virtio/vhost-shadow-virtqueue.h @@ -86,6 +86,9 @@ bool vhost_svq_valid_features(uint64_t features, Error **errp); void vhost_svq_push_elem(VhostShadowVirtqueue *svq, const VirtQueueElement *elem, uint32_t len); +int vhost_svq_add(VhostShadowVirtqueue *svq, const struct iovec *out_sg, + size_t out_num, const struct iovec *in_sg, size_t in_num, + VirtQueueElement *elem); void vhost_svq_set_svq_kick_fd(VhostShadowVirtqueue *svq, int svq_kick_fd); void vhost_svq_set_svq_call_fd(VhostShadowVirtqueue *svq, int call_fd);