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| author | Lu Baolu <baolu.lu@linux.intel.com> | 2020-06-23 07:13:45 +0800 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2020-06-23 10:08:32 +0200 |
| commit | 48f0bcfb7aad2c6eb4c1e66476b58475aa14393e (patch) | |
| tree | 1999a430c4e8da99dc4e2e0562cbc87cc5ed9062 | |
| parent | 04c00956ee3cd138fd38560a91452a804a8c5550 (diff) | |
| download | linux-48f0bcfb7aad2c6eb4c1e66476b58475aa14393e.tar.bz2 | |
iommu/vt-d: Fix misuse of iommu_domain_identity_map()
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: e70b081c6f376 ("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>
| -rw-r--r-- | drivers/iommu/intel/iommu.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index f16bf63ea9fd..d759e7234e98 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -2701,7 +2701,9 @@ static int __init si_domain_init(int hw) end >> agaw_to_width(si_domain->agaw))) 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) return ret; } |