Messages in this thread Patch in this message | | | From | Lu Baolu <> | Subject | [PATCH 1/1] iommu/vt-d: Fix misuse of iommu_domain_identity_map() | Date | Fri, 19 Jun 2020 07:36:50 +0800 |
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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: e70b081c6f376 ("iommu/vt-d: Remove IOVA handling code from the non-dma_ops path") Cc: Tom Murphy <murphyt7@tcd.ie> Reported-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> --- drivers/iommu/intel/iommu.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
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; } -- 2.17.1
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