linux-kernel - Re: [PATCH] x86/PCI: Ignore CPU non-addressable

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Message-ID: <20111205110609.7f4fa6e0@jbarnes-desktop>
Date:	Mon, 5 Dec 2011 11:06:09 -0800
From:	Jesse Barnes <jbarnes@...tuousgeek.org>
To:	Gary Hade <garyhade@...ibm.com>
Cc:	linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
	stable@...nel.org, Bjorn Helgaas <bhelgaas@...gle.com>,
	Thomas Renninger <trenn@...ell.com>
Subject: Re: [PATCH] x86/PCI: Ignore CPU non-addressable _CRS reserved
 memory resources

On Mon, 14 Nov 2011 15:42:16 -0800
Gary Hade <garyhade@...ibm.com> wrote:

> 
> From: Gary Hade <garyhade@...ibm.com>
> 
> This assures that a _CRS reserved host bridge window or 
> window region is not used if it is not addressable by
> the CPU.  The new code either trims the window to exclude
> the non-addressable portion or totally ignores the window
> if the entire window is non-addressable.
> 
> The current code has been shown to be problematic with
> 32-bit non-PAE kernels on systems where _CRS reserves
> resources above 4GB.
> 
> Signed-off-by: Gary Hade <garyhade@...ibm.com>
> Reviewed-by: Bjorn Helgaas <bhelgaas@...gle.com>
> Cc: Jesse Barnes <jbarnes@...tuousgeek.org>
> Cc: Bjorn Helgaas <bhelgaas@...gle.com>
> Cc: Thomas Renninger <trenn@...ell.com>
> Cc: linux-kernel@...r.kernel.org
> Cc: stable@...nel.org
> ---

Applied to linux-next (don't want to send something this fundamental to
Linus at this late stage).  It can land in stable if it turns out ok in
-rc1.

Thanks,
-- 
Jesse Barnes, Intel Open Source Technology Center

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