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authorLu Baolu <baolu.lu@linux.intel.com>2019-03-20 09:58:34 +0800
committerJoerg Roedel <jroedel@suse.de>2019-03-22 12:02:27 +0100
commit84c11e4df5aa4955acaa441f0cf1cb2e50daf64b (patch)
tree6dff3aec9c1a046b9edf38f397aa17b75ec4d349
parent5bb71fc790a88d063507dc5d445ab8b14e845591 (diff)
iommu/vt-d: Save the right domain ID used by hardware
The driver sets a default domain id (FLPT_DEFAULT_DID) in the first level only pasid entry, but saves a different domain id in @sdev->did. The value saved in @sdev->did will be used to invalidate the translation caches. Hence, the driver might result in invalidating the caches with a wrong domain id. Cc: Ashok Raj <ashok.raj@intel.com> Cc: Jacob Pan <jacob.jun.pan@linux.intel.com> Fixes: 1c4f88b7f1f92 ("iommu/vt-d: Shared virtual address in scalable mode") Signed-off-by: Liu Yi L <yi.l.liu@intel.com> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
-rw-r--r--drivers/iommu/intel-iommu.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index f002d47d2f27..28cb713d728c 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -5335,7 +5335,7 @@ int intel_iommu_enable_pasid(struct intel_iommu *iommu, struct intel_svm_dev *sd
ctx_lo = context[0].lo;
- sdev->did = domain->iommu_did[iommu->seq_id];
+ sdev->did = FLPT_DEFAULT_DID;
sdev->sid = PCI_DEVID(info->bus, info->devfn);
if (!(ctx_lo & CONTEXT_PASIDE)) {