#define HVM_PARAM_BUFIOREQ_PFN 6\r
#define HVM_PARAM_BUFIOREQ_EVTCHN 26\r
\r
-#if defined(__i386__) || defined(__x86_64__)\r
+#if defined(MDE_CPU_IA32) || defined(MDE_CPU_X64)\r
\r
/* Expose Viridian interfaces to this HVM guest? */\r
#define HVM_PARAM_VIRIDIAN 9\r