diff --git a/arch/arm64/tools/sysreg b/arch/arm64/tools/sysreg
index 9d1c21108057..1287cb1de6f3 100644
--- a/arch/arm64/tools/sysreg
+++ b/arch/arm64/tools/sysreg
@@ -5172,6 +5172,14 @@ Field	31:16	PARTID_D
 Field	15:0	PARTID_I
 EndSysreg
 
+Sysreg	MPAMSM_EL1	3	0	10	5	3
+Res0	63:48
+Field	47:40	PMG_D
+Res0	39:32
+Field	31:16	PARTID_D
+Res0	15:0
+EndSysreg
+
 Sysreg	ISR_EL1	3	0	12	1	0
 Res0	63:11
 Field	10	IS