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| author | Yong Wu <yong.wu@mediatek.com> | 2019-08-24 11:01:52 +0800 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2019-08-30 15:57:26 +0200 |
| commit | 7f315c9da9f5e5f9ba720ca4b5e04e5ee91833f9 (patch) | |
| tree | d9d4c468ce0c30f0116abaa7ae71f8ff10d3454c | |
| parent | 5950b9541b509037aeb9e7b95f88a692bf3f46a3 (diff) | |
| download | linux-7f315c9da9f5e5f9ba720ca4b5e04e5ee91833f9.tar.gz linux-7f315c9da9f5e5f9ba720ca4b5e04e5ee91833f9.tar.bz2 linux-7f315c9da9f5e5f9ba720ca4b5e04e5ee91833f9.zip | |
iommu/io-pgtable-arm-v7s: Use ias/oas to check the valid iova/pa
Use ias/oas to check the valid iova/pa. Synchronize this checking with
io-pgtable-arm.c.
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
| -rw-r--r-- | drivers/iommu/io-pgtable-arm-v7s.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/iommu/io-pgtable-arm-v7s.c b/drivers/iommu/io-pgtable-arm-v7s.c index 72f1880e0c9d..fa1b38f4c271 100644 --- a/drivers/iommu/io-pgtable-arm-v7s.c +++ b/drivers/iommu/io-pgtable-arm-v7s.c @@ -504,7 +504,8 @@ static int arm_v7s_map(struct io_pgtable_ops *ops, unsigned long iova, if (!(prot & (IOMMU_READ | IOMMU_WRITE))) return 0; - if (WARN_ON(upper_32_bits(iova) || upper_32_bits(paddr))) + if (WARN_ON(iova >= (1ULL << data->iop.cfg.ias) || + paddr >= (1ULL << data->iop.cfg.oas))) return -ERANGE; ret = __arm_v7s_map(data, iova, paddr, size, prot, 1, data->pgd); |