If you look at the abstract spec starting at call_kernel in Syscall_A and working in towards timer_tick in Interrupt_A, you'll see that a timer interrupt results in a call to timer_tick which decrements the current thread's time slice and interacts with the scheduler through reschedule_required if the thread or domain time slice expires. You could investigate to see how closely the C code corresponds.
On 11 November 2015 at 16:19, Raymond Jennings <[email protected]> wrote: > Where does the seL4 microkernel actually get the timing information it > needs to enforce scheduling decisions? > > I can imagine some sort of interrupt or I/O access is required to get it > from the raw hardware. > > How does it get from the timing hardware to the scheduling code? > > _______________________________________________ > Devel mailing list > [email protected] > https://sel4.systems/lists/listinfo/devel > >
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