diff --git a/sys/arm64/include/hypervisor.h b/sys/arm64/include/hypervisor.h
--- a/sys/arm64/include/hypervisor.h
+++ b/sys/arm64/include/hypervisor.h
@@ -56,10 +56,11 @@
 #define	CPTR_RES0		0x7fefc800
 #define	CPTR_RES1		0x000033ff
 #define	CPTR_TFP		0x00000400
+#define	CPTR_TTA		0x00100000
 /* Valid if HCR_EL2.E2H == 1 */
 #define	CPTR_E2H_FPEN		0x00300000
+#define	CPTR_E2H_TTA		0x10000000
 /* Unconditionally valid */
-#define	CPTR_TTA		0x00100000
 #define	CPTR_TCPAC		0x80000000
 
 /* HCR_EL2 - Hypervisor Config Register */