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Re: NetBSD dom0 PVH: hardware interrupts stalls
- To: Jan Beulich <jbeulich@xxxxxxxx>
- From: Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Date: Tue, 24 Nov 2020 16:00:38 +0100
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- Cc: Manuel Bouyer <bouyer@xxxxxxxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Tue, 24 Nov 2020 15:01:18 +0000
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On Tue, Nov 24, 2020 at 03:52:25PM +0100, Jan Beulich wrote:
> On 24.11.2020 15:27, Manuel Bouyer wrote:
> > new log at
> > http://www-soc.lip6.fr/~bouyer/xen-log7.txt
> >
> > this one ends up in a panic, I hope you'll find what you expect here.
>
> Did you actually, just to have the data point, ever try to disable
> interrupt remapping ("iommu=no-intremap")? For PVH we can't ask you
> to turn of the IOMMU as a whole, but aiui interrupt remapping is
> not a strict prereq. (I'm sure Roger will correct me if I'm wrong.)
No, interrupt remapping is not required for PVH dom0. I was actually
going to ask the same, albeit I'm not sure it will make a difference.
Roger.
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