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Date:   Fri, 23 Dec 2016 11:35:48 +0100
From:   Joerg Roedel <>
To:     Bjorn Helgaas <>
Cc:     "Raj, Ashok" <>,,,
        David Woodhouse <>,,
Subject: Re: possible dmar_init_reserved_ranges() error

On Thu, Dec 22, 2016 at 06:48:01PM -0600, Bjorn Helgaas wrote:
> If we didn't want to use pcibios_resource_to_bus() here for some
> reason, we should at least add a comment about why we think it's OK to
> use a CPU physical address as an IOVA.

Even if there are no such x86 systems out there, I think it doesn't hurt
to handle the possibility correctly in the IOMMU drivers.


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