[Stormdos-develop] sysint.txt

[Juras <yb...@tu...>]

Hello stormdos-develop,

Kernel Syscalls
~~~~~~~~~~~~~~~

The system interrupt doesn't do context switch - it executes
using PDBR of the caller. Hence it runs in the address space
of the caller. The kernel function is called with interrupts disabled
however another system call can be running in the context of
another thread. That is why the kernel must be

- thread-safe, provide locking mechanism
- interruptable
- share the same addresses for its memory inspite of the current
thread address space (see mem.txt)  

-- 
Best regards,
 Juras                          mailto:yb...@tu...