[ Upstream commit 84c11e4df5aa4955acaa441f0cf1cb2e50daf64b ]
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 Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/iommu/intel-iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 68a21c49c562..53b1fbadc496 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -5331,7 +5331,7 @@ 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)) {