+/**
+ * Convert guest physical address to host virtual address
+ *
+ * @param mem
+ * the guest memory regions
+ * @param gpa
+ * the guest physical address for querying
+ * @return
+ * the host virtual address on success, 0 on failure
+ */
+static inline uint64_t __attribute__((always_inline))
+rte_vhost_gpa_to_vva(struct rte_vhost_memory *mem, uint64_t gpa)
+{
+ struct rte_vhost_mem_region *reg;
+ uint32_t i;
+
+ for (i = 0; i < mem->nregions; i++) {
+ reg = &mem->regions[i];
+ if (gpa >= reg->guest_phys_addr &&
+ gpa < reg->guest_phys_addr + reg->size) {
+ return gpa - reg->guest_phys_addr +
+ reg->host_user_addr;
+ }
+ }
+
+ return 0;
+}
+