The 'sxadm status' command in #OracleSolaris 11.4.63 has added two new extensions that it reports on.
BTC_NO is reported for AMD CPUs that are not susceptible to the Branch Type Confusion vulnerability (CVE-2022-23825).
SMEP is reported for Intel & AMD CPUs which have enabled Supervisor Mode Execution Prevention. (SMEP has been enabled since Oracle Solaris 11.1 on Intel's Ivy Bridge and later processors, but was not previously reported by the sxadm command. AMD support came later.)