From: Lu Baolu <baolu.lu@linux.intel.com>
To: Joerg Roedel <joro@8bytes.org>
Cc: iommu@lists.linux-foundation.org, Tom Murphy <murphyt7@tcd.ie>
Subject: [PATCH 6/6] iommu/vt-d: Fix misuse of iommu_domain_identity_map()
Date: Tue, 23 Jun 2020 07:13:45 +0800 [thread overview]
Message-ID: <20200622231345.29722-7-baolu.lu@linux.intel.com> (raw)
In-Reply-To: <20200622231345.29722-1-baolu.lu@linux.intel.com>
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>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.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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next prev parent reply other threads:[~2020-06-22 23:18 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-22 23:13 [PATCH 0/6] [PULL REQUEST] iommu/vt-d: fixes for v5.8 Lu Baolu
2020-06-22 23:13 ` [PATCH 1/6] iommu/vt-d: Make Intel SVM code 64-bit only Lu Baolu
2020-06-22 23:13 ` [PATCH 2/6] iommu/vt-d: Set U/S bit in first level page table by default Lu Baolu
2020-06-22 23:13 ` [PATCH 3/6] iommu/vt-d: Don't apply gfx quirks to untrusted devices Lu Baolu
2020-06-22 23:13 ` [PATCH 4/6] iommu/vt-d: Enable PCI ACS for platform opt in hint Lu Baolu
2020-06-22 23:13 ` [PATCH 5/6] iommu/vt-d: Update scalable mode paging structure coherency Lu Baolu
2020-06-22 23:13 ` Lu Baolu [this message]
2020-06-23 8:12 ` [PATCH 0/6] [PULL REQUEST] iommu/vt-d: fixes for v5.8 Joerg Roedel
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