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

To: Sheng Yang <sheng@xxxxxxxxxxxxxxx>
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Date: Wed, 16 Sep 2009 13:25:30 -0700
Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Eddie Dong <eddie.dong@xxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>, Keir Fraser <keir.fraser@xxxxxxxxxxxxx>, Jun Nakajima <jun.nakajima@xxxxxxxxx>
Delivery-date: Wed, 16 Sep 2009 13:25:53 -0700
List-id: Xen developer discussion <xen-devel.lists.xensource.com>

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

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Follow-Ups:
- Re: [Xen-devel] [RFC][PATCH 07/10] xen/hybrid: Add PV timer support
  - From: Sheng Yang

References:
- [Xen-devel] [RFC][PATCH 0/10] Xen Hybrid extension support
  - From: Sheng Yang
- [Xen-devel] [RFC][PATCH 07/10] xen/hybrid: Add PV timer support
  - From: Sheng Yang

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