3 ms·
Below ring 0 and in addition to ME you have the less known "ring -2". https://en.wikipedia.org/wiki/System_Management_Mode https://en.wikipedia.org/wiki/System_
by partycoder 10y ago
Below ring 0 and in addition to ME you have the less known "ring -2".
https://en.wikipedia.org/wiki/System_Management_Mode https://en.wikipedia.org/wiki/System_Management_Mode
There is also microcode, and many patches are issued through microcode.