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authorGary Hade <garyhade@us.ibm.com>2011-11-14 15:42:16 -0800
committerJesse Barnes <jbarnes@virtuousgeek.org>2012-01-06 12:10:32 -0800
commitae5cd86455381282ece162966183d3f208c6fad7 (patch)
tree542674bc3c49b910ff740122483619b694853737 /drivers
parent1830ea91c20b06608f7cdb2455ce05ba834b3214 (diff)
x86/PCI: Ignore CPU non-addressable _CRS reserved memory resources
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@us.ibm.com> Reviewed-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Thomas Renninger <trenn@novell.com> Cc: linux-kernel@vger.kernel.org Cc: stable@kernel.org Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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