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iommu/vt-d: Set context field after value initialized 

Otherwise, the translation type field of a context entry for
a PCI device will always be 0. All translated DMA requests
will be blocked by IOMMU. As the result, the PCI devices with
PCI ATS (device IOTBL) support won't work as expected.

Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Suggested-by: Kevin Tian <kevin.tian@intel.com>
Fixes: 7373a8cc38 ("iommu/vt-d: Setup context and enable RID2PASID support")
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Lu Baolu 2019-03-01 11:23:11 +08:00 committed by Joerg Roedel
parent d8b8591054
commit 41b80db227
1 changed files with 2 additions and 1 deletions
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3
drivers/iommu/intel-iommu.c
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@ -2056,7 +2056,6 @@ static int domain_context_mapping_one(struct dmar_domain *domain,
int agaw;
context_set_domain_id(context, did);
context_set_translation_type(context, translation);
if (translation != CONTEXT_TT_PASS_THROUGH) {
/*
@ -2086,6 +2085,8 @@ static int domain_context_mapping_one(struct dmar_domain *domain,
*/
context_set_address_width(context, iommu->msagaw);
}
context_set_translation_type(context, translation);
}
context_set_fault_enable(context);