Re: [Xen-devel] [RFC][PATCH 07/10] xen/hybrid: Add PV timer support

From: Sheng Yang
Date: Thu Sep 17 2009 - 01:55:04 EST


On Thursday 17 September 2009 04:25:30 Jeremy Fitzhardinge wrote:
> On 09/16/09 01:42, Sheng Yang wrote:
> > If we have event channel, we can use VIRQ_TIMER to deliver timer
> > interrupt, otherwise we would reuse IRQ0.
>
> What's the purpose of this? Why can we get a timer virq via event
> channel as usual? I'm very dubious about having any platform
> interrupts/apic interaction in this code.
>
> J

Before this patch, we didn't enable event channel for hybrid guest. But I
think it's reasonable to enable it. Separating the event channel patch into
two, one for generic usage, and another one QEmu devices. I would try to do
this.

--
regards
Yang, Sheng
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