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Re: [PATCH 2/2] intel-iommu: block output address in interrupt address r
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From: |
Peter Xu |
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Subject: |
Re: [PATCH 2/2] intel-iommu: block output address in interrupt address range |
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Date: |
Thu, 10 Feb 2022 17:47:22 +0800 |
On Thu, Feb 10, 2022 at 05:28:15PM +0800, Jason Wang wrote:
> According to vtd spec v3.3 3.14:
>
> """
> Software must not program paging-structure entries to remap any
> address to the interrupt address range. Untranslated requests and
> translation requests that result in an address in the interrupt range
> will be blocked with condition code LGN.4 or SGN.8.
> """
>
> This patch blocks the request that result in interrupt address range.
>
> Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
--
Peter Xu