vhost: export guest memory regions

[dpdk.git] / lib / librte_vhost / vhost.c

diff --git a/lib/librte_vhost/vhost.c b/lib/librte_vhost/vhost.c
index 7d7bb3c..2b41652 100644 (file)
--- a/lib/librte_vhost/vhost.c
+++ b/lib/librte_vhost/vhost.c
@@ -359,6 +359,29 @@ rte_vhost_get_ifname(int vid, char *buf, size_t len)
        return 0;
 }
 
+int
+rte_vhost_get_mem_table(int vid, struct rte_vhost_memory **mem)
+{
+       struct virtio_net *dev;
+       struct rte_vhost_memory *m;
+       size_t size;
+
+       dev = get_device(vid);
+       if (!dev)
+               return -1;
+
+       size = dev->mem->nregions * sizeof(struct rte_vhost_mem_region);
+       m = malloc(size);
+       if (!m)
+               return -1;
+
+       m->nregions = dev->mem->nregions;
+       memcpy(m->regions, dev->mem->regions, size);
+       *mem = m;
+
+       return 0;
+}
+
 uint16_t
 rte_vhost_avail_entries(int vid, uint16_t queue_id)
 {