From: Xin Tong <xerox.time.tech@gmail.com>
To: 陳韋任 <chenwj@iis.sinica.edu.tw>
Cc: Peter Maydell <peter.maydell@linaro.org>,
qemu-devel <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] QEMU TB Unlinking due to interrupt.
Date: Tue, 13 Dec 2011 20:29:50 -0500 [thread overview]
Message-ID: <CALKntY194PFZcZJyJ_56KBnbZvMYs_hmeuLc3SavNWEZLeduzw@mail.gmail.com> (raw)
In-Reply-To: <20111213081057.GA70633@cs.nctu.edu.tw>
QEMU performs a recursive unchaining on the current executing tb when
a timer fires. This timer is set by setitimer in the qemu-timer.c.
This is what I mean by "interrupt pending". Of course, there are
interrupts from emulated devices as well, but i do not know how that
is set up, i.e. how tcg_handle_interrupt is called when the devices
finishes some work. I hope you can enlighten me on that.
Thanks
Xin
On Tue, Dec 13, 2011 at 3:10 AM, 陳韋任 <chenwj@iis.sinica.edu.tw> wrote:
>> 1. some other tbs being invalidated.
>> 2. interrrupt pending
>
> Could you point out "interrrupt pending" means where? I'd like to take a look,
> thanks. :)
>
> Regards,
> chenwj
>
> --
> Wei-Ren Chen (陳韋任)
> Computer Systems Lab, Institute of Information Science,
> Academia Sinica, Taiwan (R.O.C.)
> Tel:886-2-2788-3799 #1667
> Homepage: http://people.cs.nctu.edu.tw/~chenwj
next prev parent reply other threads:[~2011-12-14 1:29 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-09 18:44 [Qemu-devel] QEMU TB Unlinking due to interrupt Xin Tong
2011-12-09 23:45 ` Peter Maydell
2011-12-10 0:08 ` Xin Tong
2011-12-13 8:10 ` 陳韋任
2011-12-14 1:29 ` Xin Tong [this message]
2011-12-14 14:29 ` 陳韋任
2012-01-20 7:41 ` 陳韋任
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