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Re: [PATCH 2/2] intel_iommu: Only allow interrupt remapping to be enable
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From: |
Peter Xu |
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Subject: |
Re: [PATCH 2/2] intel_iommu: Only allow interrupt remapping to be enabled if it's supported |
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Date: |
Fri, 3 Dec 2021 15:42:14 +0800 |
On Thu, Dec 02, 2021 at 11:53:25AM +0800, Jason Wang wrote:
> On Thu, Dec 2, 2021 at 4:58 AM David Woodhouse <dwmw2@infradead.org> wrote:
> >
> > From: David Woodhouse <dwmw@amazon.co.uk>
> >
> > We should probably check if we were meant to be exposing IR, before
> > letting the guest turn the IRE bit on.
>
> This looks correct, but it's a change of guest noticeable behaviour.
> It's probably fine since we don't expect a guest that enable IR
> without checking ecap.
Agreed.
>
> So
>
> Acked-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
--
Peter Xu