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| author | Gary R Hook <gary.hook@amd.com> | 2017-11-03 10:50:34 -0600 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2017-11-03 10:50:34 -0600 |
| commit | b92b4fb5c14257c0e7eae291ecc1f7b1962e1699 (patch) | |
| tree | 081cd2b7bed61ba045dc2f7526e3e223ad933416 /drivers/iommu | |
| parent | 049541e178d5b1d003584aa0ad2a96101f0694d2 (diff) | |
| download | linux-stable-b92b4fb5c14257c0e7eae291ecc1f7b1962e1699.tar.gz linux-stable-b92b4fb5c14257c0e7eae291ecc1f7b1962e1699.tar.bz2 linux-stable-b92b4fb5c14257c0e7eae291ecc1f7b1962e1699.zip | |
iommu/amd: Limit the IOVA page range to the specified addresses
The extent of pages specified when applying a reserved region should
include up to the last page of the range, but not the page following
the range.
Signed-off-by: Gary R Hook <gary.hook@amd.com>
Fixes: 8d54d6c8b8f3 ('iommu/amd: Implement apply_dm_region call-back')
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/amd_iommu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 797e6454afd5..a8c111e96cc3 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -3151,7 +3151,7 @@ static void amd_iommu_apply_resv_region(struct device *dev, unsigned long start, end; start = IOVA_PFN(region->start); - end = IOVA_PFN(region->start + region->length); + end = IOVA_PFN(region->start + region->length - 1); WARN_ON_ONCE(reserve_iova(&dma_dom->iovad, start, end) == NULL); } |