+/* Unparse memory page size e.g. 4K, 2M */
+__clib_export u8 *
+format_log2_page_size (u8 * s, va_list * va)
+{
+ clib_mem_page_sz_t log2_page_sz = va_arg (*va, clib_mem_page_sz_t);
+
+ if (log2_page_sz == CLIB_MEM_PAGE_SZ_UNKNOWN)
+ return format (s, "unknown");
+
+ if (log2_page_sz == CLIB_MEM_PAGE_SZ_DEFAULT)
+ return format (s, "default");
+
+ if (log2_page_sz == CLIB_MEM_PAGE_SZ_DEFAULT_HUGE)
+ return format (s, "default-hugepage");
+
+ if (log2_page_sz >= 30)
+ return format (s, "%uG", 1 << (log2_page_sz - 30));
+
+ if (log2_page_sz >= 20)
+ return format (s, "%uM", 1 << (log2_page_sz - 20));
+
+ if (log2_page_sz >= 10)
+ return format (s, "%uK", 1 << (log2_page_sz - 10));
+
+ return format (s, "%u", 1 << log2_page_sz);
+}
+
+/* Parse memory page size e.g. 4K, 2M */
+__clib_export uword
+unformat_log2_page_size (unformat_input_t * input, va_list * va)
+{
+ uword amount;
+ clib_mem_page_sz_t *result = va_arg (*va, clib_mem_page_sz_t *);
+
+ if (unformat (input, "default-hugepage"))
+ *result = CLIB_MEM_PAGE_SZ_DEFAULT_HUGE;
+ else if (unformat (input, "default"))
+ *result = CLIB_MEM_PAGE_SZ_DEFAULT;
+ else if (unformat (input, "%wdk", &amount))
+ *result = min_log2 (amount) + 10;
+ else if (unformat (input, "%wdK", &amount))
+ *result = min_log2 (amount) + 10;
+ else if (unformat (input, "%wdm", &amount))
+ *result = min_log2 (amount) + 20;
+ else if (unformat (input, "%wdM", &amount))
+ *result = min_log2 (amount) + 20;
+ else if (unformat (input, "%wdg", &amount))
+ *result = min_log2 (amount) + 30;
+ else if (unformat (input, "%wdG", &amount))
+ *result = min_log2 (amount) + 30;
+ else
+ return 0;
+ return 1;
+}
+