* For CPU_EXTENDED_PROC_INFO_FEATURE_BITS:
* Returns them in buf[0] and buf[1].
*
+ * For CPU_EXTENDED_L2_CACHE_FEATURES:
+ * buf[0]: Line size
+ * buf[1]: Associativity
+ * buf[2]: Cache size.
+ *
* For CPU_VIRT_PHYS_ADDR_SIZES:
- * Returns it as an integer in *buf.
+ * buf[0]: Physical
+ * buf[1]: Virtual
*
* For CPU_PROC_BRAND_STRING:
* Have a char array with at least 48 bytes assigned to it.