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| author | Allen Kay <allen.m.kay@intel.com> | 2011-10-14 12:32:46 -0700 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2011-10-19 12:06:22 +0100 |
| commit | 4399c8bf2b9093696fa8160d79712e7346989c46 (patch) | |
| tree | 66363d75fa8e346b84ba6fcdca33f78858456328 /Documentation/pi-futex.txt | |
| parent | 8140a95d228efbcd64d84150e794761a32463947 (diff) | |
intel-iommu: fix superpage support in pfn_to_dma_pte()
If target_level == 0, current code breaks out of the while-loop if
SUPERPAGE bit is set. We should also break out if PTE is not present.
If we don't do this, KVM calls to iommu_iova_to_phys() will cause
pfn_to_dma_pte() to create mapping for 4KiB pages.
Signed-off-by: Allen Kay <allen.m.kay@intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'Documentation/pi-futex.txt')
0 files changed, 0 insertions, 0 deletions