GUI indication and options for MDS mitigation
Similar to the option for Kernel PTI on system_advanced_misc.php we should have an option for MDS.
It is controlled by sysctl oid
0 - mitigation disabled 1 - VERW instruction (microcode) mitigation enabled 2 - Software sequence mitigation enabled (not recommended) 3 - Automatic VERW or Software selection
Also in the system info widget on the Dashboard, the value of
hw.mds_disable_state can be output to show the current state.