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authorDavid Woodhouse <David.Woodhouse@intel.com>2009-12-02 09:21:55 +0000
committerDavid Woodhouse <David.Woodhouse@intel.com>2009-12-08 10:02:52 +0000
commit5595b528b49a702c0428c0762bab60999648254c (patch)
treeaa6c04a00e90eb7ac91e24aa295fc2022de4161d /drivers/pci/hotplug
parent6ecbf01c7ce4c0f4c3bdfa0e64ac6258328fda6c (diff)
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intel-iommu: Check for an RMRR which ends before it starts.
Some HP BIOSes report an RMRR region (a region which needs a 1:1 mapping in the IOMMU for a given device) which has an end address lower than its start address. Detect that and warn, rather than triggering the BUG() in dma_pte_clear_range(). Cc: stable@kernel.org Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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