Hi everyone, I have two questions for you: 1) As I understand, when we talk about Ring-0 context, we refer to kernel space, while Ring-3 context refers to user space. Am I right?
2) I'm looking inside the E1000 emulation code (/src/VBox/Devices/Network/DevE1000.cpp). Assuming that the above is right, for what concerns the registers callbacks, I do not understand why those callbacks are compiled to be executed in Ring-0 context (When I use logging inside those functions, the thread name i R0). Infact, looking inside the VboxDD.so file in the "out/bin" directory (using objdump tool), it seems that this code "belongs" to Ring-3 context, so why is it running in Ring-0 context? I'm running Ubuntu 64 bit on Host and InstantContiki 3.0 32-bits linux distribution as guest. Kind regards, Luca Carotenuto -- Luca Carotenuto
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