From: Robert Hancock <hancockr@shaw.ca>
To: YM Yen <yminyen@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Hooking to APIC timer on SMP 32-bit X86 system
Date: Sun, 06 Apr 2008 14:46:06 -0600 [thread overview]
Message-ID: <47F9368E.7070107@shaw.ca> (raw)
In-Reply-To: <fa.ORNHzXNKWJTtCts8OxkQgfojzSk@ifi.uio.no>
YM Yen wrote:
> hi,
>
> I am looking for a way to program the APIC timer in a kernel module so
> that the module depends only on the hardware timer instead of the timer
> provided by the kernel. Programming the LVT is easy, however I can't
> find a way to have the Linux kernel to call my interrupt service routine
> in addition to smp_apic_timer_interrupt().
>
> Is doing this even possible? There doesn't seem to be any sort of hook
> or notifier chain I can install a ISR to. Thanks in advance.
It might be possible, but likely not easy and not recommended. Why is a
kernel timer not sufficient for what you need?
next parent reply other threads:[~2008-04-06 20:44 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <fa.ORNHzXNKWJTtCts8OxkQgfojzSk@ifi.uio.no>
2008-04-06 20:46 ` Robert Hancock [this message]
2008-04-06 19:48 Hooking to APIC timer on SMP 32-bit X86 system YM Yen
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