diff options
| -rw-r--r-- | src/vnet/devices/virtio/vhost_user.c | 22 | ||||
| -rw-r--r-- | src/vnet/devices/virtio/vhost_user.h | 3 |
2 files changed, 25 insertions, 0 deletions
diff --git a/src/vnet/devices/virtio/vhost_user.c b/src/vnet/devices/virtio/vhost_user.c index a18313b2038..c61828eb6c0 100644 --- a/src/vnet/devices/virtio/vhost_user.c +++ b/src/vnet/devices/virtio/vhost_user.c @@ -557,6 +557,24 @@ vhost_user_socket_read (clib_file_t * uf) vui->nregions++; } + + /* + * Re-compute desc, used, and avail descriptor table if vring address + * is set. + */ + for (q = 0; q < VHOST_VRING_MAX_N; q++) + { + if (vui->vrings[q].desc_user_addr && + vui->vrings[q].used_user_addr && vui->vrings[q].avail_user_addr) + { + vui->vrings[q].desc = + map_user_mem (vui, vui->vrings[q].desc_user_addr); + vui->vrings[q].used = + map_user_mem (vui, vui->vrings[q].used_user_addr); + vui->vrings[q].avail = + map_user_mem (vui, vui->vrings[q].avail_user_addr); + } + } vlib_worker_thread_barrier_release (vm); break; @@ -600,6 +618,10 @@ vhost_user_socket_read (clib_file_t * uf) goto close_socket; } + vui->vrings[msg.state.index].desc_user_addr = msg.addr.desc_user_addr; + vui->vrings[msg.state.index].used_user_addr = msg.addr.used_user_addr; + vui->vrings[msg.state.index].avail_user_addr = msg.addr.avail_user_addr; + vlib_worker_thread_barrier_sync (vm); vui->vrings[msg.state.index].desc = desc; vui->vrings[msg.state.index].used = used; diff --git a/src/vnet/devices/virtio/vhost_user.h b/src/vnet/devices/virtio/vhost_user.h index 7dadfed2334..7ebea9336af 100644 --- a/src/vnet/devices/virtio/vhost_user.h +++ b/src/vnet/devices/virtio/vhost_user.h @@ -237,6 +237,9 @@ typedef struct vring_desc_t *desc; vring_avail_t *avail; vring_used_t *used; + uword desc_user_addr; + uword used_user_addr; + uword avail_user_addr; f64 int_deadline; u8 started; u8 enabled; |