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Re: possible dmar_init_reserved_ranges() error

From Joerg Roedel <joro@8bytes.org>
Newsgroups linux.kernel
Subject Re: possible dmar_init_reserved_ranges() error
Date 2016-12-23 11:40 +0100
Message-ID <sRvqx-5GS-7@gated-at.bofh.it> (permalink)
References (1 earlier) <sRepH-3kK-1@gated-at.bofh.it> <sRi9Y-5GP-33@gated-at.bofh.it> <sRl7P-7vL-7@gated-at.bofh.it> <sRlhw-7zC-11@gated-at.bofh.it> <sRmdA-8bw-11@gated-at.bofh.it>
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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.



	Joerg

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Thread

possible dmar_init_reserved_ranges() error Bjorn Helgaas <helgaas@kernel.org> - 2016-12-19 22:30 +0100
  Re: possible dmar_init_reserved_ranges() error Joerg Roedel <joro@8bytes.org> - 2016-12-22 17:30 +0100
    Re: possible dmar_init_reserved_ranges() error Bjorn Helgaas <helgaas@kernel.org> - 2016-12-22 21:30 +0100
      Re: possible dmar_init_reserved_ranges() error "Raj, Ashok" <ashok.raj@intel.com> - 2016-12-23 00:40 +0100
        Re: possible dmar_init_reserved_ranges() error "Raj, Ashok" <ashok.raj@intel.com> - 2016-12-23 00:50 +0100
          Re: possible dmar_init_reserved_ranges() error Bjorn Helgaas <helgaas@kernel.org> - 2016-12-23 01:50 +0100
            Re: possible dmar_init_reserved_ranges() error Joerg Roedel <joro@8bytes.org> - 2016-12-23 11:40 +0100
  Re: possible dmar_init_reserved_ranges() error Bjorn Helgaas <helgaas@kernel.org> - 2016-12-28 00:50 +0100
    Re: possible dmar_init_reserved_ranges() error "Raj, Ashok" <ashok.raj@intel.com> - 2016-12-28 04:30 +0100

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