+@item @code{fp16} @tab ARMv8.2-A @tab ARMv8.2-A or later
+ @tab Enable ARMv8.2 16-bit floating-point support. This implies
+ @code{fp}.
+@item @code{lor} @tab ARMv8-A @tab ARMv8.1-A or later
+ @tab Enable Limited Ordering Regions extensions.
+@item @code{lse} @tab ARMv8-A @tab ARMv8.1-A or later
+ @tab Enable Large System extensions.
+@item @code{pan} @tab ARMv8-A @tab ARMv8.1-A or later
+ @tab Enable Privileged Access Never support.
+@item @code{profile} @tab ARMv8.2-A @tab No
+ @tab Enable statistical profiling extensions.
+@item @code{ras} @tab ARMv8-A @tab ARMv8.2-A or later
+ @tab Enable the Reliability, Availability and Serviceability
+ extension.
+@item @code{rdma} @tab ARMv8-A @tab ARMv8.1-A or later
+ @tab Enable ARMv8.1 Advanced SIMD extensions. This implies @code{simd}.