+#ifdef RTE_LIBRTE_XEN_DOM0
+
+/**< Internal use only - should DOM0 memory mapping be used */
+int rte_xen_dom0_supported(void);
+
+/**< Internal use only - phys to virt mapping for xen */
+phys_addr_t rte_xen_mem_phy2mch(uint32_t, const phys_addr_t);
+
+/**
+ * Return the physical address of elt, which is an element of the pool mp.
+ *
+ * @param memseg_id
+ * The mempool is from which memory segment.
+ * @param phy_addr
+ * physical address of elt.
+ *
+ * @return
+ * The physical address or error.
+ */
+static inline phys_addr_t
+rte_mem_phy2mch(uint32_t memseg_id, const phys_addr_t phy_addr)
+{
+ if (rte_xen_dom0_supported())
+ return rte_xen_mem_phy2mch(memseg_id, phy_addr);
+ else
+ return phy_addr;
+}
+
+/**
+ * Memory init for supporting application running on Xen domain0.
+ *
+ * @param void
+ *
+ * @return
+ * 0: successfully
+ * negative: error
+ */
+int rte_xen_dom0_memory_init(void);
+
+/**
+ * Attach to memory setments of primary process on Xen domain0.
+ *
+ * @param void
+ *
+ * @return
+ * 0: successfully
+ * negative: error
+ */
+int rte_xen_dom0_memory_attach(void);
+#else
+static inline int rte_xen_dom0_supported(void)
+{
+ return 0;
+}
+
+static inline phys_addr_t
+rte_mem_phy2mch(uint32_t memseg_id __rte_unused, const phys_addr_t phy_addr)
+{
+ return phy_addr;
+}
+#endif
+