SYS_MPAMHCR_EL2
msr_s SYS_MPAMHCR_EL2, xzr // clear TRAP_MPAMIDR_EL1 -> EL2
write_sysreg_s(MPAMHCR_EL2_TRAP_MPAMIDR_EL1, SYS_MPAMHCR_EL2);
write_sysreg_s(MPAMHCR_HOST_FLAGS, SYS_MPAMHCR_EL2);
{ SYS_DESC(SYS_MPAMHCR_EL2), undef_access },