Andy Shevchenko <andy.shevchenko@xxxxxxxxx> writes: > On Wed, Sep 12, 2018 at 6:16 PM Jack Henschel <jack.henschel@xxxxxxxxxxx> wrote: >> >> Hi there, >> >> is it possible to register a custom interrupt handler for a NMI/PMI >> Interrupt? > > I don't think so, though I'm not an expert in the area, so, I also > might be interested to see the answer to this question. Sure, register_nmi_handler(). >> In particular, I want to catch the Intel PT interrupt (generated by the >> PMU and sent over the LAPIC) in a kernel module. Is such a thing possible? > > I'm not sure why do you need this, Cc'ed to PT driver author. Thanks, Andy. I am indeed interested in all the different PT drivers out there. So far, I'm aware of the perf driver and an out of tree simple-pt. If you end up with yet another one, do let me know. Good luck, -- Alex
