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| author | Gary Hade <garyhade@us.ibm.com> | 2011-11-15 00:42:16 +0100 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2012-01-06 21:10:32 +0100 |
| commit | ae5cd86455381282ece162966183d3f208c6fad7 (patch) | |
| tree | 542674bc3c49b910ff740122483619b694853737 /drivers/pci/access.c | |
| parent | PCI: Fix PCI_EXP_TYPE_RC_EC value (diff) | |
| download | linux-ae5cd86455381282ece162966183d3f208c6fad7.tar.xz linux-ae5cd86455381282ece162966183d3f208c6fad7.zip | |
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>
Diffstat (limited to 'drivers/pci/access.c')
0 files changed, 0 insertions, 0 deletions