From: Mulyadi Santosa <mulyadi.santosa@gmail.com>
To: "felix.matenaar@rwth-aachen" <felix.matenaar@rwth-aachen.de>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] QEMU timing requirements
Date: Sun, 26 Jun 2011 03:02:44 +0700 [thread overview]
Message-ID: <BANLkTikSK+yVEeYwHdMsitJK9CGLzfn0wA@mail.gmail.com> (raw)
In-Reply-To: <4E060C98.30706@rwth-aachen.de>
On Sat, Jun 25, 2011 at 23:28, felix.matenaar@rwth-aachen
<felix.matenaar@rwth-aachen.de> wrote:
> No. What I do is using gen_helper_ to compile hooks into call/ret/jmp and
> memory access. The Heuristics can then hook the events so calculation is
> done during the execution of a basic block. I thought that it could be
> possible that Qemu sets a timeout for BBL execution to prevent CPU
> monopolization by e.g. a long sequence of rep. That would make sense because
> my heuristics calculation time falls into the BBL execution time for Qemu.
> Does anyone know more about that?
perhaps your heuristics code somehow coincide with the timer alarm
(PIT, HPET etc) emulation in Qemu....and somewhere your code is not
reentrant.....
--
regards,
Mulyadi Santosa
Freelance Linux trainer and consultant
blog: the-hydra.blogspot.com
training: mulyaditraining.blogspot.com
next prev parent reply other threads:[~2011-06-25 20:03 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-25 2:34 [Qemu-devel] QEMU timing requirements felix.matenaar@rwth-aachen
2011-06-25 4:26 ` Mulyadi Santosa
2011-06-25 16:28 ` felix.matenaar@rwth-aachen
2011-06-25 20:02 ` Mulyadi Santosa [this message]
2011-06-25 22:29 ` felix.matenaar@rwth-aachen
2011-06-26 4:49 ` Mulyadi Santosa
2011-06-26 17:49 ` felix.matenaar@rwth-aachen
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