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| author | Gary Hade <garyhade@us.ibm.com> | 2011-11-14 15:42:16 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2012-01-25 17:24:39 -0800 |
| commit | 0a4179971477550df61b9218e664eb9128abf2e3 (patch) | |
| tree | 33309b9b7433ddd33dfc82b0de16df8644e8e181 /security/commoncap.c | |
| parent | 65d61b46700e059210b4c9f63355d57dc0e1a18e (diff) | |
| download | kernel_samsung_crespo-0a4179971477550df61b9218e664eb9128abf2e3.tar.gz kernel_samsung_crespo-0a4179971477550df61b9218e664eb9128abf2e3.tar.bz2 kernel_samsung_crespo-0a4179971477550df61b9218e664eb9128abf2e3.zip | |
x86/PCI: Ignore CPU non-addressable _CRS reserved memory resources
commit ae5cd86455381282ece162966183d3f208c6fad7 upstream.
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
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'security/commoncap.c')
0 files changed, 0 insertions, 0 deletions