[...]

quoted

quoted

 	case SYS_ID_AA64ISAR3_EL1:
-		val &= ID_AA64ISAR3_EL1_FPRCVT | ID_AA64ISAR3_EL1_FAMINMAX;
+		val &= ID_AA64ISAR3_EL1_FPRCVT | ID_AA64ISAR3_EL1_FAMINMAX |
+		       ID_AA64ISAR3_EL1_LSUI;

This should be added to set_id_regs, but ID_AA64ISAR3_EL1 isn't covered
by that yet.  I posted a series for that the other day:

   https://lore.kernel.org/r/20250920-kvm-arm64-id-aa64isar3-el1-v1-0-1764c1c1c96d@kernel.org (local)

Thank to let me know missing to add kselftest feature for this.
I'll add it :)

I mean after merging your patch series.

Thanks.

--
Sincerely,
Yeoreum Yun