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* [Qemu-devel] QEMU device timer
@ 2011-09-22 12:28 Xin Tong
  2011-09-24 11:58 ` 陳韋任
  0 siblings, 1 reply; 4+ messages in thread
From: Xin Tong @ 2011-09-22 12:28 UTC (permalink / raw)
  To: qemu-devel

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I am new to QEMU. I saw most devices in QEMU has a timer associated with it.
What are the timers used for ?

Thanks

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^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [Qemu-devel] QEMU device timer
  2011-09-22 12:28 [Qemu-devel] QEMU device timer Xin Tong
@ 2011-09-24 11:58 ` 陳韋任
  2011-09-24 14:22   ` Xin Tong
  0 siblings, 1 reply; 4+ messages in thread
From: 陳韋任 @ 2011-09-24 11:58 UTC (permalink / raw)
  To: Xin Tong; +Cc: qemu-devel

> I am new to QEMU. I saw most devices in QEMU has a timer associated with it.
                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^      
  For example?

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

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [Qemu-devel] QEMU device timer
  2011-09-24 11:58 ` 陳韋任
@ 2011-09-24 14:22   ` Xin Tong
  2011-09-25  4:31     ` 陳韋任
  0 siblings, 1 reply; 4+ messages in thread
From: Xin Tong @ 2011-09-24 14:22 UTC (permalink / raw)
  To: 陳韋任; +Cc: qemu-devel

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In rtl8139.c  There is a

/* PCI interrupt timer */
    QEMUTimer *timer;

Xin

On Sat, Sep 24, 2011 at 7:58 AM, 陳韋任 <chenwj@iis.sinica.edu.tw> wrote:

> > I am new to QEMU. I saw most devices in QEMU has a timer associated with
> it.
>
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>  For example?
>
> 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
>

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^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [Qemu-devel] QEMU device timer
  2011-09-24 14:22   ` Xin Tong
@ 2011-09-25  4:31     ` 陳韋任
  0 siblings, 0 replies; 4+ messages in thread
From: 陳韋任 @ 2011-09-25  4:31 UTC (permalink / raw)
  To: Xin Tong; +Cc: qemu-devel, 陳韋任

> In rtl8139.c  There is a
> 
> /* PCI interrupt timer */
>     QEMUTimer *timer;

  QEMUTimer is a virtual timer (might use various virtual clocks) used by
hw or something else. In thise case, when the timer is time out, rtl8139
will generate a interrupt.

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

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2011-09-25  4:31 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2011-09-22 12:28 [Qemu-devel] QEMU device timer Xin Tong
2011-09-24 11:58 ` 陳韋任
2011-09-24 14:22   ` Xin Tong
2011-09-25  4:31     ` 陳韋任

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