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authorSricharan R <sricharan@codeaurora.org>2017-01-06 18:58:15 +0530
committerWill Deacon <will.deacon@arm.com>2017-01-19 15:56:20 +0000
commite19898077cfb642fe151ba22981e795c74d9e114 (patch)
tree00266dc1efc7a8d35ca713233fae859edf7d99eb /drivers/iommu
parent1b2354dbcc7b232b50f26dfd47fd4c529edfc20a (diff)
iommu/arm-smmu: Set privileged attribute to 'default' instead of 'unprivileged'
Currently the driver sets all the device transactions privileges to UNPRIVILEGED, but there are cases where the iommu masters wants to isolate privileged supervisor and unprivileged user. So don't override the privileged setting to unprivileged, instead set it to default as incoming and let it be controlled by the pagetable settings. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Sricharan R <sricharan@codeaurora.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'drivers/iommu')
-rw-r--r--drivers/iommu/arm-smmu.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index a60cded8a6ed..73a0a250db25 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -1214,7 +1214,7 @@ static int arm_smmu_domain_add_master(struct arm_smmu_domain *smmu_domain,
continue;
s2cr[idx].type = type;
- s2cr[idx].privcfg = S2CR_PRIVCFG_UNPRIV;
+ s2cr[idx].privcfg = S2CR_PRIVCFG_DEFAULT;
s2cr[idx].cbndx = cbndx;
arm_smmu_write_s2cr(smmu, idx);
}