On Thu, 13 Sep 2012, Jan Kiszka wrote:
> > I've also just skimmed parts of the 8254 section of "The Indispensable PC
> > Hardware Book", by Hans-Peter Messmer, Copyright 1994 Addison-Wesley,
> > although I probably ought to read it more carefully.
>
> http://download.intel.com/design/archives/per
On 2012-09-13 07:49, Matthew Ogilvie wrote:
> On Wed, Sep 12, 2012 at 10:57:57AM +0200, Jan Kiszka wrote:
>> On 2012-09-12 10:51, Avi Kivity wrote:
>>> On 09/12/2012 11:48 AM, Jan Kiszka wrote:
On 2012-09-12 10:01, Avi Kivity wrote:
> On 09/10/2012 04:29 AM, Matthew Ogilvie wrote:
>> I
On 2012-09-13 15:41, Maciej W. Rozycki wrote:
> On Wed, 12 Sep 2012, Matthew Ogilvie wrote:
>
>> Also, how big of a concern is a very rare gained or lost IRQ0
>> actually? Under normal conditions, I would expect this to at most
>> cause a one time clock drift in the guest OS of a fraction of
>> a
On Wed, 12 Sep 2012, Matthew Ogilvie wrote:
> Also, how big of a concern is a very rare gained or lost IRQ0
> actually? Under normal conditions, I would expect this to at most
> cause a one time clock drift in the guest OS of a fraction of
> a second. If that only happens when rebooting or migra
On Wed, Sep 12, 2012 at 10:57:57AM +0200, Jan Kiszka wrote:
> On 2012-09-12 10:51, Avi Kivity wrote:
> > On 09/12/2012 11:48 AM, Jan Kiszka wrote:
> >> On 2012-09-12 10:01, Avi Kivity wrote:
> >>> On 09/10/2012 04:29 AM, Matthew Ogilvie wrote:
> Intel's definition of "edge triggered" means: "a
On 09/12/2012 11:57 AM, Jan Kiszka wrote:
> On 2012-09-12 10:51, Avi Kivity wrote:
>> On 09/12/2012 11:48 AM, Jan Kiszka wrote:
>>> On 2012-09-12 10:01, Avi Kivity wrote:
On 09/10/2012 04:29 AM, Matthew Ogilvie wrote:
> Intel's definition of "edge triggered" means: "asserted with a
> l
On 2012-09-12 10:51, Avi Kivity wrote:
> On 09/12/2012 11:48 AM, Jan Kiszka wrote:
>> On 2012-09-12 10:01, Avi Kivity wrote:
>>> On 09/10/2012 04:29 AM, Matthew Ogilvie wrote:
Intel's definition of "edge triggered" means: "asserted with a
low-to-high transition at the time an interrupt is
On 09/12/2012 11:48 AM, Jan Kiszka wrote:
> On 2012-09-12 10:01, Avi Kivity wrote:
>> On 09/10/2012 04:29 AM, Matthew Ogilvie wrote:
>>> Intel's definition of "edge triggered" means: "asserted with a
>>> low-to-high transition at the time an interrupt is registered
>>> and then kept high until the
On 2012-09-12 10:01, Avi Kivity wrote:
> On 09/10/2012 04:29 AM, Matthew Ogilvie wrote:
>> Intel's definition of "edge triggered" means: "asserted with a
>> low-to-high transition at the time an interrupt is registered
>> and then kept high until the interrupt is served via one of the
>> EOI mechan
On 09/10/2012 04:29 AM, Matthew Ogilvie wrote:
> Intel's definition of "edge triggered" means: "asserted with a
> low-to-high transition at the time an interrupt is registered
> and then kept high until the interrupt is served via one of the
> EOI mechanisms or goes away unhandled."
>
> So the onl
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