4 ms·
Depends on the OS design. It's really not a good design, but you could run everything in ring0 (x86), supervisor mode (ARM), etc. However, now any fault (user o
by deaddodo 10y ago
Depends on the OS design. It's really not a good design, but you could run everything in ring0 (x86), supervisor mode (ARM), etc. However, now any fault (user or OS) could halt your system and you have no memory protection or process separation.
- monocasa 10y agoYou've also have Singularity style software isolated processes where the OS statically verifies memory safety so that it can safely run all of the code in ring 0.
- andrewmchen 10y agoYou only have to run the privileged process that talks to the GPU in ring0 right?