diff --git a/lib/sprt/sprt_host.c b/lib/sprt/sprt_host.c
new file mode 100644
index 0000000..c4d436e
--- /dev/null
+++ b/lib/sprt/sprt_host.c
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2018, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <errno.h>
+#include <stddef.h>
+#include <stdint.h>
+
+#include "sprt_common.h"
+#include "sprt_queue.h"
+
+void sprt_initialize_queues(void *buffer_base, size_t buffer_size)
+{
+	/* Initialize queue for blocking messages */
+
+	void *blocking_base = buffer_base;
+	uint32_t blocking_num = 4U;
+	size_t blocking_size = SPRT_QUEUE_HEADER_SIZE +
+			       SPRT_QUEUE_ENTRY_MSG_SIZE * blocking_num;
+
+	sprt_queue_init(blocking_base, blocking_num, SPRT_QUEUE_ENTRY_MSG_SIZE);
+
+	/* Initialize queue for non-blocking messages */
+
+	void *non_blocking_base = (void *)((uintptr_t)blocking_base + blocking_size);
+	size_t non_blocking_size = buffer_size - blocking_size;
+	uint32_t non_blocking_num = (non_blocking_size - SPRT_QUEUE_HEADER_SIZE) /
+		SPRT_QUEUE_ENTRY_MSG_SIZE;
+
+	sprt_queue_init(non_blocking_base, non_blocking_num, SPRT_QUEUE_ENTRY_MSG_SIZE);
+}
+
+int sprt_push_message(void *buffer_base,
+		      const struct sprt_queue_entry_message *message,
+		      int queue_num)
+{
+	struct sprt_queue *q = buffer_base;
+
+	while (queue_num-- > 0) {
+		uintptr_t next_addr = (uintptr_t)q + sizeof(struct sprt_queue) +
+				      q->entry_num * q->entry_size;
+		q = (struct sprt_queue *) next_addr;
+	}
+
+	return sprt_queue_push(q, message);
+}