From: "H. Peter Anvin" <hpa@zytor.com>
To: Matt Fleming <matt@console-pimps.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>,
linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
x86@kernel.org, Matt Fleming <matt.fleming@intel.com>,
Matthew Garrett <mjg59@srcf.ucam.org>,
Seth Forshee <seth.forshee@canonical.com>,
Jesse Barnes <jbarnes@virtuousgeek.org>,
stable@vger.kernel.org
Subject: Re: [PATCH] x86/PCI: setup data may be in highmem
Date: Thu, 23 May 2013 15:46:36 -0700 [thread overview]
Message-ID: <519E9C4C.3080305@zytor.com> (raw)
In-Reply-To: <1369215782-32697-1-git-send-email-matt@console-pimps.org>
On 05/22/2013 02:43 AM, Matt Fleming wrote:
> From: Matt Fleming <matt.fleming@intel.com>
>
> pcibios_add_device() assumes that the physical addresses stored in
> setup_data are accessible via the direct kernel mapping, and that
> calling phys_to_virt() is valid. This isn't guaranteed to be true on x86
> where the direct mapping range is much smaller than on x86-64.
>
> Calling phys_to_virt() on a highmem address results in the following,
>
Bjorn: yours or mine?
-hpa
next prev parent reply other threads:[~2013-05-23 22:46 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-22 9:43 [PATCH] x86/PCI: setup data may be in highmem Matt Fleming
2013-05-23 22:46 ` H. Peter Anvin [this message]
2013-05-24 14:38 ` Bjorn Helgaas
2013-05-28 11:36 ` Matt Fleming
2013-05-28 16:31 ` Bjorn Helgaas
2013-05-28 16:48 ` Matthew Garrett
2013-05-28 17:28 ` Bjorn Helgaas
2013-06-05 14:15 ` Matt Fleming
2013-06-05 17:10 ` Bjorn Helgaas
2013-06-08 11:15 ` Artem Bityutskiy
2013-06-08 11:14 ` Bityutskiy, Artem
2013-06-08 11:14 ` Bityutskiy, Artem
2013-06-08 11:14 ` Bityutskiy, Artem
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