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| author |   David Woodhouse <David.Woodhouse@intel.com> | 2009-12-02 09:21:55 +0000 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2009-12-08 10:02:52 +0000 |
| commit | 5595b528b49a702c0428c0762bab60999648254c (patch) | |
| tree | aa6c04a00e90eb7ac91e24aa295fc2022de4161d /lib/dma-debug.c | |
| parent | intel-iommu: Apply BIOS sanity checks for interrupt remapping too. (diff) | |
| download | linux-dev-5595b528b49a702c0428c0762bab60999648254c.tar.xz linux-dev-5595b528b49a702c0428c0762bab60999648254c.zip | |
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>
Diffstat (limited to 'lib/dma-debug.c')
0 files changed, 0 insertions, 0 deletions