diff --git a/include/infiniband/driver.h b/include/infiniband/driver.h
index c86109d..968888f 100644
--- a/include/infiniband/driver.h
+++ b/include/infiniband/driver.h
@@ -126,6 +126,10 @@ int ibv_cmd_create_qp_ex(struct ibv_pd *pd,
 			 struct ibv_qp *qp, struct ibv_qp_init_attr_ex *attr_ex,
 			 struct ibv_create_qp *cmd, size_t cmd_size,
 			 struct ibv_create_qp_resp *resp, size_t resp_size);
+int ibv_cmd_open_qp(struct ibv_xrcd *xrcd,
+		    struct ibv_qp *qp, struct ibv_qp_open_attr *attr,
+		    struct ibv_open_qp *cmd, size_t cmd_size,
+		    struct ibv_create_qp_resp *resp, size_t resp_size);
 int ibv_cmd_query_qp(struct ibv_qp *qp, struct ibv_qp_attr *qp_attr,
 		     int attr_mask,
 		     struct ibv_qp_init_attr *qp_init_attr,
diff --git a/include/infiniband/kern-abi.h b/include/infiniband/kern-abi.h
index b6d5ce9..e24fa4f 100644
--- a/include/infiniband/kern-abi.h
+++ b/include/infiniband/kern-abi.h
@@ -88,7 +88,8 @@ enum {
 	IB_USER_VERBS_CMD_POST_SRQ_RECV,
 	IB_USER_VERBS_CMD_OPEN_XRCD,
 	IB_USER_VERBS_CMD_CLOSE_XRCD,
-	IB_USER_VERBS_CMD_CREATE_XSRQ
+	IB_USER_VERBS_CMD_CREATE_XSRQ,
+	IB_USER_VERBS_CMD_OPEN_QP
 };
 
 /*
@@ -476,6 +477,20 @@ struct ibv_create_qp {
 	__u64 driver_data[0];
 };
 
+struct ibv_open_qp {
+	__u32 command;
+	__u16 in_words;
+	__u16 out_words;
+	__u64 response;
+	__u64 user_handle;
+	__u32 pd_handle;
+	__u32 qpn;
+	__u8  qp_type;
+	__u8  reserved[7];
+	__u64 driver_data[0];
+};
+
+/* also used for open response */
 struct ibv_create_qp_resp {
 	__u32 qp_handle;
 	__u32 qpn;
@@ -852,7 +867,8 @@ enum {
 	IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL_V2 = -1,
 	IB_USER_VERBS_CMD_OPEN_XRCD_V2 = -1,
 	IB_USER_VERBS_CMD_CLOSE_XRCD_V2 = -1,
-	IB_USER_VERBS_CMD_CREATE_XSRQ_V2 = -1
+	IB_USER_VERBS_CMD_CREATE_XSRQ_V2 = -1,
+	IB_USER_VERBS_CMD_OPEN_QP_V2 = -1
 };
 
 struct ibv_destroy_cq_v1 {
diff --git a/include/infiniband/verbs.h b/include/infiniband/verbs.h
index 9524095..a3bf14c 100644
--- a/include/infiniband/verbs.h
+++ b/include/infiniband/verbs.h
@@ -504,6 +504,20 @@ struct ibv_qp_init_attr_ex {
 	struct ibv_xrcd	       *xrcd;
 };
 
+enum ibv_qp_open_attr_mask {
+	IBV_QP_OPEN_ATTR_CONTEXT	= 1 << 0,
+	IBV_QP_OPEN_ATTR_NUM		= 1 << 1,
+	IBV_QP_OPEN_ATTR_TYPE		= 1 << 2,
+	IBV_QP_OPEN_ATTR_RESERVED	= 1 << 3
+ };
+
+struct ibv_qp_open_attr {
+	uint32_t		comp_mask;
+	uint32_t		qp_num;
+	void		       *qp_context;
+	enum ibv_qp_type	qp_type;
+};
+
 enum ibv_qp_attr_mask {
 	IBV_QP_STATE			= 1 << 	0,
 	IBV_QP_CUR_STATE		= 1 << 	1,
@@ -535,7 +549,8 @@ enum ibv_qp_state {
 	IBV_QPS_RTS,
 	IBV_QPS_SQD,
 	IBV_QPS_SQE,
-	IBV_QPS_ERR
+	IBV_QPS_ERR,
+	IBV_QPS_UNKNOWN
 };
 
 enum ibv_mig_state {
@@ -848,6 +863,8 @@ struct verbs_context {
 	int (*drv_new_func1) ();	new corresponding provider call of func1
 	int (*lib_new_func1) ();	New library call func1
 	*/
+	struct ibv_qp *		(*open_qp)(struct ibv_xrcd *xrcd,
+					   struct ibv_qp_open_attr *attr);
 	struct ibv_qp *		(*create_qp_ex)(struct ibv_pd *pd,
 						struct ibv_qp_init_attr_ex *qp_init_attr_ex);
 	struct ibv_srq *	(*create_srq_ex)(struct ibv_pd *pd,
@@ -1171,6 +1188,12 @@ struct ibv_qp *ibv_create_qp_ex(struct ibv_pd *pd,
 				struct ibv_qp_init_attr_ex *qp_init_attr_ex);
 
 /**
+ * ibv_open_qp - Open a shareable queue pair.
+ */
+struct ibv_qp *ibv_open_qp(struct ibv_xrcd *xrcd,
+			   struct ibv_qp_open_attr *qp_open_attr);
+
+/**
  * ibv_modify_qp - Modify a queue pair.
  */
 int ibv_modify_qp(struct ibv_qp *qp, struct ibv_qp_attr *attr,
diff --git a/src/cmd.c b/src/cmd.c
index 005bf94..be4fac7 100644
--- a/src/cmd.c
+++ b/src/cmd.c
@@ -716,6 +716,28 @@ int ibv_cmd_create_qp(struct ibv_pd *pd,
 	return ret;
 }
 
+int ibv_cmd_open_qp(struct ibv_xrcd *xrcd, struct ibv_qp *qp,
+		    struct ibv_qp_open_attr *attr,
+		    struct ibv_open_qp *cmd, size_t cmd_size,
+		    struct ibv_create_qp_resp *resp, size_t resp_size)
+{
+	IBV_INIT_CMD_RESP(cmd, cmd_size, OPEN_QP, resp, resp_size);
+
+	cmd->user_handle = (uintptr_t) qp;
+	cmd->pd_handle   = xrcd->handle;
+	cmd->qpn         = attr->qp_num;
+	cmd->qp_type     = attr->qp_type;
+
+	if (write(xrcd->context->cmd_fd, cmd, cmd_size) != cmd_size)
+		return errno;
+
+	VALGRIND_MAKE_MEM_DEFINED(resp, resp_size);
+
+	qp->handle     = resp->qp_handle;
+
+	return 0;
+}
+
 int ibv_cmd_query_qp(struct ibv_qp *qp, struct ibv_qp_attr *attr,
 		     int attr_mask,
 		     struct ibv_qp_init_attr *init_attr,
diff --git a/src/libibverbs.map b/src/libibverbs.map
index 9ee1cf2..93903c2 100644
--- a/src/libibverbs.map
+++ b/src/libibverbs.map
@@ -106,5 +106,7 @@ IBVERBS_1.1 {
 		ibv_cmd_create_srq_ex;
 		ibv_create_qp_ex;
 		ibv_cmd_create_qp_ex;
+		ibv_open_qp;
+		ibv_cmd_open_qp;
 		
 } IBVERBS_1.0;
diff --git a/src/verbs.c b/src/verbs.c
index 02f08aa..e42695e 100644
--- a/src/verbs.c
+++ b/src/verbs.c
@@ -527,6 +527,42 @@ struct ibv_qp *__ibv_create_qp(struct ibv_pd *pd,
 }
 default_symver(__ibv_create_qp, ibv_create_qp);
 
+struct ibv_qp *__ibv_open_qp(struct ibv_xrcd *xrcd,
+			     struct ibv_qp_open_attr *qp_open_attr)
+{
+	struct verbs_context *context_ex;
+	struct ibv_qp *qp;
+
+	context_ex = verbs_get_ctx(xrcd->context);
+	if (!context_ex->open_qp ||
+	    qp_open_attr->comp_mask >= IBV_QP_OPEN_ATTR_RESERVED) {
+		errno = ENOSYS;
+		return NULL;
+	}
+
+	qp = context_ex->open_qp(xrcd, qp_open_attr);
+	if (qp) {
+		qp->context    = xrcd->context;
+		qp->qp_context = qp_open_attr->qp_context;
+
+		qp->pd = NULL;
+		qp->send_cq = qp->recv_cq = NULL;
+		qp->srq = NULL;
+		qp->comp_mask |= IBV_QP_XRCD;
+		qp->xrcd = xrcd;
+
+		qp->qp_num  = qp_open_attr->qp_num;
+		qp->qp_type = qp_open_attr->qp_type;
+		qp->state   = IBV_QPS_UNKNOWN;
+		qp->events_completed = 0;
+		pthread_mutex_init(&qp->mutex, NULL);
+		pthread_cond_init(&qp->cond, NULL);
+	}
+
+	return qp;
+}
+default_symver(__ibv_open_qp, ibv_open_qp);
+
 int __ibv_query_qp(struct ibv_qp *qp, struct ibv_qp_attr *attr,
 		   int attr_mask,
 		   struct ibv_qp_init_attr *init_attr)
