olemus
tavaline tööolek, mis lubab protsessori, süsteemi, komponendi võimalusi kasutada kitsendatult ning täidetav kood saab pöörduda riistvara või mälu poole mitte otse, vaid rakendusliidese kaudu
= a mode of operation where applications and tasks are executed with limited privileges, ensuring that user processes cannot directly interfere with system processes and hardware operations

ülevaateid
https://www.techtarget.com/searchsoftwarequality/tip/User-mode-vs-kernel-mode-OSes-explained
https://blog.codinghorror.com/understanding-user-and-kernel-mode/
http://www.linfo.org/user_mode.html
https://wiki.archlinux.org/index.php/User-mode_Linux
http://www.cs.uni.edu/~diesburg/courses/cs3430_sp14/sessions/s12/s12_memory_protection.pdf

turvalisus
https://www.apriorit.com/dev-blog/439-kernel-mode-vs-user-mode
https://resources.infosecinstitute.com/rootkits-user-mode-kernel-mode-part-1/
https://networklessons.com/cisco/ccna-routing-switching-icnd1-100-105/user-mode-and-privileged-mode-security
https://security.stackexchange.com/questions/64341/how-secure-is-user-mode-linux-in-terms-of-protecting-the-host-system

vt ka
- tuumarežiim