VHOST_SET_MEM_TABLE failed: Operation not supported In vhost_set_memory(), We have if (mem.padding) return -EOPNOTSUPP; So, we need to zero struct vhost_memory. Signed-off-by: Asias He <asias.hejun@xxxxxxxxx> --- tools/kvm/virtio/net.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/kvm/virtio/net.c b/tools/kvm/virtio/net.c index ae17eb5..aa769d9 100644 --- a/tools/kvm/virtio/net.c +++ b/tools/kvm/virtio/net.c @@ -471,7 +471,7 @@ static void virtio_net__vhost_init(struct kvm *kvm, struct net_dev *ndev) if (ndev->vhost_fd < 0) die_perror("Failed openning vhost-net device"); - mem = malloc(sizeof(*mem) + sizeof(struct vhost_memory_region)); + mem = calloc(1, sizeof(*mem) + sizeof(struct vhost_memory_region)); if (mem == NULL) die("Failed allocating memory for vhost memory map"); -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html