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iommu/vt-d: Fix misuse of iommu_domain_identity_map()

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The iommu_domain_identity_map() helper takes start/end PFN as arguments.
Fix a misuse case where the start and end addresses are passed.

Fixes: e70b081c6f ("iommu/vt-d: Remove IOVA handling code from the non-dma_ops path")
Reported-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Cc: Tom Murphy <murphyt7@tcd.ie>
Link: https://lore.kernel.org/r/20200622231345.29722-7-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Lu Baolu 2020-06-23 07:13:45 +08:00 committed by Joerg Roedel
parent 04c00956ee
commit 48f0bcfb7a
1 changed files with 3 additions and 1 deletions
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4
drivers/iommu/intel/iommu.c
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@ -2701,7 +2701,9 @@ static int __init si_domain_init(int hw)
end >> agaw_to_width(si_domain->agaw))) end >> agaw_to_width(si_domain->agaw)))
continue; continue;
ret = iommu_domain_identity_map(si_domain, start, end); ret = iommu_domain_identity_map(si_domain,
mm_to_dma_pfn(start >> PAGE_SHIFT),
mm_to_dma_pfn(end >> PAGE_SHIFT));
if (ret) if (ret)
return ret; return ret;
} }