This is correct, and you should take an interrupt every 10ms in any
case.
Interesting values to print are the master mask, master pending,
pending_sel, and the words in the pend and mask arrays that contain
the bits for the event channel that you are interested in.
(Remember that the event channel will have a different index to the
VIRQ number).
-- Keir
> OK, some more data.
>
> in a timer interrupt (first and only) I see this:
> xentimerread: hz 0 cpu_hz 598736060 shadow_system_time 333ac5398180
> settin timer to 0x333bfecedc00
>
> So the time is 333ac5398180, I set the timer to 0x333bfecedc00 via
> HYPERVISOR_set_timer_op. I'm assuming that once the system time gets to
> 0x333bfecedc00 then I'll get an interrupt.
>
> Now we wait ... in this loop, I'm print time and the values of the mask,
> the pending, and the pending_sel values in shared info:
>
> ipending: @0x333bfe262600 islo 0x0, pending 0x0, pending_sel 0x0
> ipending: @0x333bfebebc80 islo 0x0, pending 0x0, pending_sel 0x0
> ipending: @0x333bff575300 islo 0x0, pending 0x0, pending_sel 0x0
> ipending: @0x333bffefe980 islo 0x0, pending 0x0, pending_sel 0x0
> ipending: @0x333c00888000 islo 0x0, pending 0x0, pending_sel 0x0
>
> note that there is no changing in pending as we cross the time for an
> interrupt to have happened. I would expect to see pending to get set to
> some non-zero value once the system time had passed 0x333bfecedc00.
>
> My reading of HYPERVISOR_set_timer_op is that you set an absolute value,
> and when the time is > than that value, you get called with an interrupt;
> is that wrong?
>
> ron
>
> --
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>
>
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